1.
Eiffel Tower
–
The Eiffel Tower is a wrought iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed, the Eiffel Tower is the most-visited paid monument in the world,6.91 million people ascended it in 2015. The tower is 324 metres tall, about the height as an 81-storey building. Its base is square, measuring 125 metres on each side, due to the addition of a broadcasting aerial at the top of the tower in 1957, it is now taller than the Chrysler Building by 5.2 metres. Excluding transmitters, the Eiffel Tower is the second-tallest structure in France after the Millau Viaduct, the tower has three levels for visitors, with restaurants on the first and second levels. The top levels upper platform is 276 m above the ground – the highest observation deck accessible to the public in the European Union, tickets can be purchased to ascend by stairs or lift to the first and second levels. The climb from ground level to the first level is over 300 steps, although there is a staircase to the top level, it is usually only accessible by lift. Eiffel openly acknowledged that inspiration for a tower came from the Latting Observatory built in New York City in 1853, sauvestre added decorative arches to the base of the tower, a glass pavilion to the first level, and other embellishments. Little progress was made until 1886, when Jules Grévy was re-elected as president of France and Édouard Lockroy was appointed as minister for trade. On 12 May, a commission was set up to examine Eiffels scheme and its rivals, which, after some debate about the exact location of the tower, a contract was signed on 8 January 1887. Eiffel was to all income from the commercial exploitation of the tower during the exhibition. He later established a company to manage the tower, putting up half the necessary capital himself. The proposed tower had been a subject of controversy, drawing criticism from those who did not believe it was feasible and these objections were an expression of a long-standing debate in France about the relationship between architecture and engineering. And for twenty years … we shall see stretching like a blot of ink the hateful shadow of the column of bolted sheet metal. Gustave Eiffel responded to criticisms by comparing his tower to the Egyptian pyramids. Will it not also be grandiose in its way, and why would something admirable in Egypt become hideous and ridiculous in Paris. Indeed, Garnier was a member of the Tower Commission that had examined the various proposals, some of the protesters changed their minds when the tower was built, others remained unconvinced. Guy de Maupassant supposedly ate lunch in the restaurant every day because it was the one place in Paris where the tower was not visible
Eiffel Tower
–
The Eiffel Tower as seen from the
Champ de Mars
Eiffel Tower
–
First drawing of the Eiffel Tower by Maurice Koechlin including size comparison with other Parisian landmarks such as
Notre Dame de Paris, the
Statue of Liberty and the
Vendôme Column
Eiffel Tower
–
A
calligram by
Guillaume Apollinaire
2.
Paris
–
Paris is the capital and most populous city of France. It has an area of 105 square kilometres and a population of 2,229,621 in 2013 within its administrative limits, the agglomeration has grown well beyond the citys administrative limits. By the 17th century, Paris was one of Europes major centres of finance, commerce, fashion, science, and the arts, and it retains that position still today. The aire urbaine de Paris, a measure of area, spans most of the Île-de-France region and has a population of 12,405,426. It is therefore the second largest metropolitan area in the European Union after London, the Metropole of Grand Paris was created in 2016, combining the commune and its nearest suburbs into a single area for economic and environmental co-operation. Grand Paris covers 814 square kilometres and has a population of 7 million persons, the Paris Region had a GDP of €624 billion in 2012, accounting for 30.0 percent of the GDP of France and ranking it as one of the wealthiest regions in Europe. The city is also a rail, highway, and air-transport hub served by two international airports, Paris-Charles de Gaulle and Paris-Orly. Opened in 1900, the subway system, the Paris Métro. It is the second busiest metro system in Europe after Moscow Metro, notably, Paris Gare du Nord is the busiest railway station in the world outside of Japan, with 262 millions passengers in 2015. In 2015, Paris received 22.2 million visitors, making it one of the top tourist destinations. The association football club Paris Saint-Germain and the rugby union club Stade Français are based in Paris, the 80, 000-seat Stade de France, built for the 1998 FIFA World Cup, is located just north of Paris in the neighbouring commune of Saint-Denis. Paris hosts the annual French Open Grand Slam tennis tournament on the red clay of Roland Garros, Paris hosted the 1900 and 1924 Summer Olympics and is bidding to host the 2024 Summer Olympics. The name Paris is derived from its inhabitants, the Celtic Parisii tribe. Thus, though written the same, the name is not related to the Paris of Greek mythology. In the 1860s, the boulevards and streets of Paris were illuminated by 56,000 gas lamps, since the late 19th century, Paris has also been known as Panam in French slang. Inhabitants are known in English as Parisians and in French as Parisiens and they are also pejoratively called Parigots. The Parisii, a sub-tribe of the Celtic Senones, inhabited the Paris area from around the middle of the 3rd century BC. One of the areas major north-south trade routes crossed the Seine on the île de la Cité, this place of land and water trade routes gradually became a town
Paris
–
In the 1860s Paris streets and monuments were illuminated by 56,000 gas lamps, making it literally "The City of Light."
Paris
Paris
–
Gold coins minted by the Parisii (1st century BC)
Paris
–
The
Palais de la Cité and
Sainte-Chapelle, viewed from the Left Bank, from the
Très Riches Heures du duc de Berry (month of June) (1410)
3.
France
–
France, officially the French Republic, is a country with territory in western Europe and several overseas regions and territories. The European, or metropolitan, area of France extends from the Mediterranean Sea to the English Channel and the North Sea, Overseas France include French Guiana on the South American continent and several island territories in the Atlantic, Pacific and Indian oceans. France spans 643,801 square kilometres and had a population of almost 67 million people as of January 2017. It is a unitary republic with the capital in Paris. Other major urban centres include Marseille, Lyon, Lille, Nice, Toulouse, during the Iron Age, what is now metropolitan France was inhabited by the Gauls, a Celtic people. The area was annexed in 51 BC by Rome, which held Gaul until 486, France emerged as a major European power in the Late Middle Ages, with its victory in the Hundred Years War strengthening state-building and political centralisation. During the Renaissance, French culture flourished and a colonial empire was established. The 16th century was dominated by civil wars between Catholics and Protestants. France became Europes dominant cultural, political, and military power under Louis XIV, in the 19th century Napoleon took power and established the First French Empire, whose subsequent Napoleonic Wars shaped the course of continental Europe. Following the collapse of the Empire, France endured a succession of governments culminating with the establishment of the French Third Republic in 1870. Following liberation in 1944, a Fourth Republic was established and later dissolved in the course of the Algerian War, the Fifth Republic, led by Charles de Gaulle, was formed in 1958 and remains to this day. Algeria and nearly all the colonies became independent in the 1960s with minimal controversy and typically retained close economic. France has long been a centre of art, science. It hosts Europes fourth-largest number of cultural UNESCO World Heritage Sites and receives around 83 million foreign tourists annually, France is a developed country with the worlds sixth-largest economy by nominal GDP and ninth-largest by purchasing power parity. In terms of household wealth, it ranks fourth in the world. France performs well in international rankings of education, health care, life expectancy, France remains a great power in the world, being one of the five permanent members of the United Nations Security Council with the power to veto and an official nuclear-weapon state. It is a member state of the European Union and the Eurozone. It is also a member of the Group of 7, North Atlantic Treaty Organization, Organisation for Economic Co-operation and Development, the World Trade Organization, originally applied to the whole Frankish Empire, the name France comes from the Latin Francia, or country of the Franks
France
–
One of the
Lascaux paintings: a horse –
Dordogne, approximately 18,000 BC
France
–
Flag
France
–
The
Maison Carrée was a temple of the
Gallo-Roman city of Nemausus (present-day
Nîmes) and is one of the best preserved vestiges of the
Roman Empire.
France
–
With
Clovis ' conversion to Catholicism in 498, the
Frankish monarchy,
elective and
secular until then, became
hereditary and of
divine right.
4.
Tokyo Skytree
–
Tokyo Skytree is a broadcasting, restaurant, and observation tower in Sumida, Tokyo, Japan. Skytree was completed on 29 February 2012, with the opening to the public on 22 May 2012. The tower is the centrepiece of a commercial development funded by Tobu Railway. Trains stop at the adjacent Tokyo Skytree Station and nearby Oshiage Station, the complex is 7 km north-east of Tokyo Station. The base of the tower has a similar to a tripod, from a height of about 350 m and above, the towers structure is cylindrical to offer panoramic views of the river. There are observatories at 350 m, with a capacity of up to 2000 people, the upper observatory features a spiral, glass-covered skywalk in which visitors ascend the last 5 meters to the highest point at the upper platform. A section of flooring gives visitors a direct downward view of the streets below. The tower has seismic proofing, including a central shaft made of reinforced concrete, the main internal pillar is attached to the outer tower structure for the first 125 meters above ground. From there until 375 meters the pillar is attached to the frame with oil dampers. According to the designers, the dampers can absorb 50 percent of the energy from an earthquake, the exterior lattice is painted a colour officially called Skytree White. This is an original colour based on a white traditional Japanese colour called aijiro. The illumination design was published on 16 October 2009, two illumination patterns Iki sky blue and Miyabi purple will be used, alternating daily. The tower is illuminated using LEDs, from October to November 2007, suggestions were collected from the general public for the name to be given to the tower. On 19 March 2008, a committee chose six final candidate names, Tōkyō Sukaitsurī, Tōkyō Edo Tawā, Raijingu Tawā, Mirai Tawā, Yumemi Yagura, the official name was decided in a nationwide vote, and was announced on 10 June 2008 as Tokyo Skytree. The name received around 33,000 votes out of 110,000 cast, since the name was decided in Japanese, which has no spaces between words, it is not possible to say whether it was intended to be Tokyo Skytree or Tokyo Sky Tree. The official website states TOKYO SKYTREE as a trademark in English. English-language publications are divided between the two versions, the height of 634 m was selected to be easily remembered. The figures 6,3,4 stand for Musashi, an old name of the region where the Tokyo Skytree stands, Tokyo Skytree is used as a radio/television broadcast and communications tower
Tokyo Skytree
–
Tokyo Skytree in May 2012
Tokyo Skytree
–
Iki
Tokyo Skytree
–
Miyabi
Tokyo Skytree
–
Under construction (at the back) in January 2011 with the
Tokyo Tower at the front.
5.
Tokyo
–
Tokyo, officially Tokyo Metropolis, is the capital of Japan and one of its 47 prefectures. The Greater Tokyo Area is the most populous area in the world. It is the seat of the Emperor of Japan and the Japanese government, Tokyo is in the Kantō region on the southeastern side of the main island Honshu and includes the Izu Islands and Ogasawara Islands. Formerly known as Edo, it has been the de facto seat of government since 1603 when Shogun Tokugawa Ieyasu made the city his headquarters. It officially became the capital after Emperor Meiji moved his seat to the city from the old capital of Kyoto in 1868, Tokyo Metropolis was formed in 1943 from the merger of the former Tokyo Prefecture and the city of Tokyo. The Tokyo metropolitan government administers the 23 Special Wards of Tokyo, the metropolitan government also administers 39 municipalities in the western part of the prefecture and the two outlying island chains. The population of the wards is over 9 million people. The prefecture is part of the worlds most populous metropolitan area with upwards of 37.8 million people, the city hosts 51 of the Fortune Global 500 companies, the highest number of any city in the world. Tokyo ranked third in the International Financial Centres Development IndexEdit, the city is also home to various television networks such as Fuji TV, Tokyo MX, TV Tokyo, TV Asahi, Nippon Television, NHK and the Tokyo Broadcasting System. Tokyo ranked first in the Global Economic Power Index and fourth in the Global Cities Index. The city is considered a world city – as listed by the GaWCs 2008 inventory – and in 2014. In 2015, Tokyo was named the Most Liveable City in the world by the magazine Monocle, the Michelin Guide has awarded Tokyo by far the most Michelin stars of any city in the world. Tokyo ranked first in the world in the Safe Cities Index, the 2016 edition of QS Best Student Cities ranked Tokyo as the 3rd-best city in the world to be a university student. Tokyo hosted the 1964 Summer Olympics, the 1979 G-7 summit, the 1986 G-7 summit, and the 1993 G-7 summit, and will host the 2020 Summer Olympics, Tokyo was originally known as Edo, which means estuary. During the early Meiji period, the city was also called Tōkei, some surviving official English documents use the spelling Tokei. However, this pronunciation is now obsolete, the name Tokyo was first suggested in 1813 in the book Kondō Hisaku, written by Satō Nobuhiro. When Ōkubo Toshimichi proposed the renaming to the government during the Meiji Restoration, according to Oda Kanshi, Tokyo was originally a small fishing village named Edo, in what was formerly part of the old Musashi Province. Edo was first fortified by the Edo clan, in the twelfth century
Tokyo
–
Clockwise from top:
Nishi-Shinjuku,
Rainbow Bridge,
National Diet Building,
Shibuya,
Tokyo Skytree
Tokyo
–
Satellite photo of Tokyo's 23 Special wards taken by
NASA 's
Landsat 7
Tokyo
–
Tokugawa Ieyasu
Tokyo
–
Ginza area in 1933
6.
Japan
–
Japan is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asia Mainland and stretches from the Sea of Okhotsk in the north to the East China Sea, the kanji that make up Japans name mean sun origin. 日 can be read as ni and means sun while 本 can be read as hon, or pon, Japan is often referred to by the famous epithet Land of the Rising Sun in reference to its Japanese name. Japan is an archipelago consisting of about 6,852 islands. The four largest are Honshu, Hokkaido, Kyushu and Shikoku, the country is divided into 47 prefectures in eight regions. Hokkaido being the northernmost prefecture and Okinawa being the southernmost one, the population of 127 million is the worlds tenth largest. Japanese people make up 98. 5% of Japans total population, approximately 9.1 million people live in the city of Tokyo, the capital of Japan. Archaeological research indicates that Japan was inhabited as early as the Upper Paleolithic period, the first written mention of Japan is in Chinese history texts from the 1st century AD. Influence from other regions, mainly China, followed by periods of isolation, from the 12th century until 1868, Japan was ruled by successive feudal military shoguns who ruled in the name of the Emperor. Japan entered into a period of isolation in the early 17th century. The Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the bombings of Hiroshima and Nagasaki. Japan is a member of the UN, the OECD, the G7, the G8, the country has the worlds third-largest economy by nominal GDP and the worlds fourth-largest economy by purchasing power parity. It is also the worlds fourth-largest exporter and fourth-largest importer, although Japan has officially renounced its right to declare war, it maintains a modern military with the worlds eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a country with a very high standard of living. Its population enjoys the highest life expectancy and the third lowest infant mortality rate in the world, in ancient China, Japan was called Wo 倭. It was mentioned in the third century Chinese historical text Records of the Three Kingdoms in the section for the Wei kingdom, Wa became disliked because it has the connotation of the character 矮, meaning dwarf. The 倭 kanji has been replaced with the homophone Wa, meaning harmony, the Japanese word for Japan is 日本, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, at the start of the seventh century, a delegation from Japan introduced their country as Nihon
Japan
–
The
Golden Hall and
five-storey pagoda of
Hōryū-ji, among the oldest wooden buildings in the world,
National Treasures, and a
UNESCO World Heritage Site
Japan
Japan
–
Samurai warriors face Mongols, during the
Mongol invasions of Japan. The
Kamikaze, two storms, are said to have saved Japan from Mongol fleets.
Japan
–
Samurai could
kill a commoner for the slightest insult and were widely feared by the Japanese population.
Edo period, 1798
7.
CN Tower
–
The CN Tower is a 553.3 m-high concrete communications and observation tower in downtown Toronto, Ontario, Canada. Built on the former Railway Lands, it was completed in 1976, becoming the worlds tallest free-standing structure and it held both records for 34 years until the completion of Burj Khalifa and Canton Tower in 2010. Its name CN originally referred to Canadian National, the company that built the tower. Since the name CN Tower became common in usage, the abbreviation was eventually expanded to Canadian National Tower or Canadas National Tower. However, neither of these names is commonly used, in 1995, the CN Tower was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers. It also belongs to the World Federation of Great Towers, where it holds second-place ranking and these plans evolved over the next few years, and the project became official in 1972. Key project team members were NCK Engineering as structural engineer, John Andrews Architects, Webb, Zerafa, Menkes, Housden Architects, Foundation Building Construction, and Canron. As Toronto grew rapidly during the late 1960s and early 1970s, multiple skyscrapers were constructed in the downtown core, the reflective nature of the new buildings compromised the quality of broadcast signals necessitating new, higher antennas that were at least 300 m tall. At the time, most data communications took place over point-to-point microwave links, as each new skyscraper was added to the downtown, former line-of-sight links were no longer possible. CN intended to rent hub space for microwave links, visible from almost any building in the Toronto area. S, the original plan for the tower envisioned a tripod consisting of three independent cylindrical pillars linked at various heights by structural bridges. Had it been built, this design would have considerably shorter. The idea for the level in its current form evolved around this time. One engineer in particular felt that visitors would feel the higher observation deck would be worth paying extra for, Construction on the CN Tower began on February 6,1973, with massive excavations at the tower base for the foundation.7 m. This portion of the construction was rapid, with only four months needed between the start and the foundation being ready for construction on top. To build the support pillar, a hydraulically raised slipform was built at the base. This was an impressive engineering feat on its own, consisting of a large metal platform that raised itself on jacks at about 6 m per day as the concrete below set. In total, the tower contains 40,500 m3 of concrete, through the pour, the vertical accuracy of the tower was maintained by comparing the slip forms location to massive plumb bobs hanging from it, observed by small telescopes from the ground. Over the height of the tower, it varies from true vertical accuracy by only 29 mm, in August 1974, construction of the main level commenced
CN Tower
–
CN Tower is the
world's 6th tallest free-standing structure.
CN Tower
–
View of Toronto's
Financial District from the CN Tower at night
CN Tower
–
Looking east at the CN Tower from the
Gardiner Expressway
CN Tower
–
The CN Tower as seen from its base
8.
Toronto
–
Toronto is the most populous city in Canada and the provincial capital of Ontario. With a population of 2,731,571, Toronto is the fourth most populous city in North America after Mexico City, New York City, and Los Angeles. A global city, Toronto is a centre of business, finance, arts, and culture. Aboriginal peoples have inhabited the area now known as Toronto for thousands of years, the city itself is situated on the southern terminus of an ancient Aboriginal trail leading north to Lake Simcoe, used by the Wyandot, Iroquois, and the Mississauga. Permanent European settlement began in the 1790s, after the broadly disputed Toronto Purchase of 1787, the British established the town of York, and later designated it as the capital of Upper Canada. During the War of 1812, the town was the site of the Battle of York, York was renamed and incorporated as the city of Toronto in 1834, and became the capital of the province of Ontario during the Canadian Confederation in 1867. The city proper has since expanded past its original borders through amalgamation with surrounding municipalities at various times in its history to its current area of 630.2 km2. While the majority of Torontonians speak English as their primary language, Toronto is a prominent centre for music, theatre, motion picture production, and television production, and is home to the headquarters of Canadas major national broadcast networks and media outlets. Toronto is well known for its skyscrapers and high-rise buildings, in particular the tallest free-standing structure in the Western Hemisphere, the name Toronto is likely derived from the Iroquois word tkaronto, meaning place where trees stand in the water. This refers to the end of what is now Lake Simcoe. A portage route from Lake Ontario to Lake Huron running through this point, in the 1660s, the Iroquois established two villages within what is today Toronto, Ganatsekwyagon on the banks of the Rouge River and Teiaiagonon the banks of the Humber River. By 1701, the Mississauga had displaced the Iroquois, who abandoned the Toronto area at the end of the Beaver Wars, French traders founded Fort Rouillé on the current Exhibition grounds in 1750, but abandoned it in 1759. During the American Revolutionary War, the region saw an influx of British settlers as United Empire Loyalists fled for the British-controlled lands north of Lake Ontario, the new province of Upper Canada was in the process of creation and needed a capital. Dorchester intended the location to be named Toronto, in 1793, Governor John Graves Simcoe established the town of York on the Toronto Purchase lands, instead naming it after Prince Frederick, Duke of York and Albany. Simcoe decided to move the Upper Canada capital from Newark to York, the York garrison was constructed at the entrance of the towns natural harbour, sheltered by a long sandbar peninsula. The towns settlement formed at the end of the harbour behind the peninsula, near the present-day intersection of Parliament Street. In 1813, as part of the War of 1812, the Battle of York ended in the towns capture, the surrender of the town was negotiated by John Strachan. US soldiers destroyed much of the garrison and set fire to the parliament buildings during their five-day occupation, the sacking of York was a primary motivation for the Burning of Washington by British troops later in the war
Toronto
–
From top left:
Downtown Toronto featuring the
CN Tower and
Financial District from the
Toronto Harbour,
City Hall, the
Ontario Legislative Building,
Casa Loma,
Prince Edward Viaduct, and the
Scarborough Bluffs
Toronto
–
Coat of arms
Toronto
–
Map of Toronto, 1894
Toronto
–
Yonge Street in 1900
9.
Ontario
–
Ontario, one of the 13 provinces and territories of Canada, is located in east-central Canada. It is Canadas most populous province by a margin, accounting for nearly 40 percent of all Canadians. Ontario is fourth-largest in total area when the territories of the Northwest Territories and it is home to the nations capital city, Ottawa, and the nations most populous city, Toronto. There is only about 1 km of land made up of portages including Height of Land Portage on the Minnesota border. Ontario is sometimes divided into two regions, Northern Ontario and Southern Ontario. The great majority of Ontarios population and arable land is located in the south, in contrast, the larger, northern part of Ontario is sparsely populated with cold winters and is heavily forested. The province is named after Lake Ontario, a thought to be derived from Ontarí, io, a Huron word meaning great lake, or possibly skanadario. Ontario has about 250,000 freshwater lakes, the province consists of three main geographical regions, The thinly populated Canadian Shield in the northwestern and central portions, which comprises over half the land area of Ontario. Although this area mostly does not support agriculture, it is rich in minerals and in part covered by the Central and Midwestern Canadian Shield forests, studded with lakes, Northern Ontario is subdivided into two sub-regions, Northwestern Ontario and Northeastern Ontario. The virtually unpopulated Hudson Bay Lowlands in the north and northeast, mainly swampy. Southern Ontario which is further sub-divided into four regions, Central Ontario, Eastern Ontario, Golden Horseshoe, the highest point is Ishpatina Ridge at 693 metres above sea level located in Temagami, Northeastern Ontario. In the south, elevations of over 500 m are surpassed near Collingwood, above the Blue Mountains in the Dundalk Highlands, the Carolinian forest zone covers most of the southwestern region of the province. A well-known geographic feature is Niagara Falls, part of the Niagara Escarpment, the Saint Lawrence Seaway allows navigation to and from the Atlantic Ocean as far inland as Thunder Bay in Northwestern Ontario. Northern Ontario occupies roughly 87 percent of the area of the province. Point Pelee is a peninsula of Lake Erie in southwestern Ontario that is the southernmost extent of Canadas mainland, Pelee Island and Middle Island in Lake Erie extend slightly farther. All are south of 42°N – slightly farther south than the border of California. The climate of Ontario varies by season and location, the effects of these major air masses on temperature and precipitation depend mainly on latitude, proximity to major bodies of water and to a small extent, terrain relief. In general, most of Ontarios climate is classified as humid continental, Ontario has three main climatic regions
Ontario
–
Algonquin Provincial Park, Cache Lake
Ontario
–
Flag
Ontario
–
Summer at
Sandbanks Provincial Park on Lake Ontario.
Ontario
–
The
Niagara Escarpment on the
Bruce Peninsula.
10.
Mosque of Uqba
–
The Great Mosque of Kairouan, also known as the Mosque of Uqba, is one of the most important mosques in Tunisia, situated in the UNESCO World Heritage town of Kairouan. The Great Mosque of Kairouan is one of the most impressive and largest Islamic monuments in North Africa and this vast space contains a hypostyle prayer hall, a huge marble-paved courtyard and a massive square minaret. In addition to its prestige, the Mosque of Uqba is one of the masterpieces of both architecture and Islamic art. Under the Aghlabids, huge works gave the mosque its present aspect, the fame of the Mosque of Uqba and of the other holy sites at Kairouan helped the city to develop and repopulate increasingly. The university, consisting of scholars who taught in the mosque, was a centre of both in Islamic thought and in the secular sciences. Its role can be compared to that of the University of Paris in the Middle Ages, with the decline of the city of Kairouan from the mid 11th century, the centre of intellectual thought moved to the University of Ez-Zitouna in Tunis. Located in the north-east of the medina of Kairouan, the mosque is in the district of Houmat al-Jami. This location corresponded originally to the heart of the fabric of the city founded by Uqba ibn Nafi. But because of the nature of the land, crossed by several tributaries of the wadis. Then there are the upheavals of Kairouan following Hilalians invasions in 449 AH, for all these reasons, the mosque is not any more situated in the center of the medina, and is thereby positioned on the extremity, near the walls. The building is a vast irregular quadrilateral, longer from the side than on the opposite side. It covers a area of 9000 m2. More than a role, the buttresses and towers full serve more to enhance the stability of the mosque built on a soil subject to compaction. At the foundation of Kairouan in 670, the Arab general and conqueror Uqba Ibn Nafi chose the site of his mosque in the center of the city, near the headquarters of the governor. Around 690, shortly after its construction, the mosque was destroyed during the occupation of Kairouan by the Berbers and it was rebuilt by the Ghassanid general Hasan ibn al-Numan in 703. In view of its expansion, he pulled down the mosque and it was under his auspices that the construction of the minaret began. In 774, a new reconstruction accompanied by modifications and embellishments took place under the direction of the Abbasid governor Yazid Ibn Hatim, under the rule of Aghlabid sovereigns, Kairouan was at its apogee, and the mosque profited from this period of stability and prosperity. In 836, Ziadet-Allah I reconstructed the mosque once more, this is when the acquired, at least in its entirety
Mosque of Uqba
–
Late afternoon panorama of the mosque
Mosque of Uqba
–
Interior view of the hypostyle prayer hall in the Mosque of Uqba (Great Mosque of Kairouan)
Mosque of Uqba
–
Map of Kairouan (1916) showing the location of its Great Mosque in the northeast corner of the medina
Mosque of Uqba
–
The outside has many buttresses. Here is the northwest corner.
11.
Kairouan
–
Kairouan (Arabic, القيروان Qeirwān, also known as al-Qayrawan, is the capital of the Kairouan Governorate in Tunisia. It is a UNESCO World Heritage site, the city was founded by the Umayyads around 670. The holy Mosque of Uqba is situated in the city, in 2014, the city had about 186,653 inhabitants. The name (Arabic, القيروان Al-Qairuwân is an Arabic version, of the Persian word کاروان kârvân, meaning military/civilian camp (kâr, caravan, or resting place. Kairouan, the capital of Kairouan Governorate, lies south of Sousse,50 km from the east coast,75 km from Monastir and 184 km from Tunis, formerly, the city of Kamounia was located where Kairouan now stands. It had housed a Byzantine garrison before the Arab conquest, subsequently, there occurred a mass conversion of the Berbers to Islam. Kharijites or Islamic outsiders who formed an egalitarian and puritanical sect appeared and are present on the island of Djerba. In 745, Kharijite Berbers captured Kairouan, which was already at time a developed city with luxuriant gardens. Power struggles continued until Ibrahim ibn al-Aghlab recaptured Kairouan at the end of the 8th century, in 800 Caliph Harun ar-Rashid in Baghdad confirmed Ibrahim as Emir and hereditary ruler of Ifriqiya. Ibrahim ibn al-Aghlab founded the Aghlabid dynasty which ruled Ifriqiya between 800 and 909, the new Emirs embellished Kairouan and made it their capital. It soon became famous for its wealth and prosperity, reaching the levels of Basra and Kufa, the Aghlabites built the great mosque and established in it a university that was a centre of education both in Islamic thought and in the secular sciences. Its role can be compared to that of the University of Paris in the Middle Ages, in the 9th century, the city became a brilliant focus of Arab and Islamic cultures attracting scholars from all over the Islamic World. In that period Imam Sahnun and Asad ibn al-Furat made of Kairouan a temple of knowledge, the Aghlabids also built palaces, fortifications and fine waterworks of which only the pools remain. The Aghlabite also pacified the country and conquered Sicily in 827, in 893, through the mission of Abdullah al Mahdi, the Kutama Berbers from the west of the country started the movement of the Shiite Fatimids. The year 909 saw the overthrow of the Sunni Aghlabites who ruled Ifriqiya, governing again from Kairouan, the Zirids led the country through another artistic, commercial and agricultural heyday. Some 1,700 years of intermittent but continual progress was undone within a decade as in most part of the country the land was laid to waste for nearly two centuries. In the 13th century under the prosperous Hafsids dynasty that ruled Ifriqiya and it is only under the Husainid Dynasty that Kairouan started to find an honorable place in the country and throughout the Islamic world. In 1881, Kairouan was taken by the French, after which non-Muslims were allowed access to the city, the community disbanded in 1270 CE when the Hafsids forbade non-Muslims from living in the city, the remaining Jews were forced to convert to Islam or to leave
Kairouan
–
The Aghlabid Basins
Kairouan
–
Mosque of Oqba
Kairouan
–
Bab Chouhada Street in 1899
Kairouan
–
The
Great Mosque of Kairouan also known as the Mosque of Uqba (Great Mosque of Sidi-Uqba)
12.
Tunisia
–
Tunisia, officially the Republic of Tunisia is the northernmost country in Africa, covering 165,000 square kilometres. Its northernmost point, Cape Angela, is the northernmost point on the African continent and it is bordered by Algeria to the west and southwest, Libya to the southeast, and the Mediterranean Sea to the north and east. Tunisias population was estimated to be just under 11 million in 2014, Tunisias name is derived from its capital city, Tunis, which is located on Tunisias northeast coast. Geographically, Tunisia contains the end of the Atlas Mountains. Much of the rest of the land is fertile soil. Tunisia is a unitary semi-presidential representative democratic republic and it is considered to be the only full democracy in the Arab World. It has a human development index. In addition, Tunisia is also a state of the United Nations. Close relations with Europe – in particular with France and with Italy – have been forged through economic cooperation, privatisation, in ancient times, Tunisia was primarily inhabited by Berbers. Phoenician immigration began in the 12th century BC, these immigrants founded Carthage, a major mercantile power and a military rival of the Roman Republic, Carthage was defeated by the Romans in 146 BC. The Romans, who would occupy Tunisia for most of the eight hundred years, introduced Christianity. After several attempts starting in 647, the Arabs conquered the whole of Tunisia by 697, the Ottomans held sway for over three hundred years. The French colonization of Tunisia occurred in 1881, Tunisia gained independence with Habib Bourguiba and declared the Tunisian Republic in 1957. In 2011, the Tunisian Revolution resulted in the overthrow of President Zine El Abidine Ben Ali, the country voted for parliament again on 26 October 2014, and for President on 23 November 2014. The word Tunisia is derived from Tunis, an urban hub. The present form of the name, with its Latinate suffix -ia, the French derivative Tunisie was adopted in some European languages with slight modifications, introducing a distinctive name to designate the country. Other languages remained untouched, such as the Russian Туни́с and Spanish Túnez, in this case, the same name is used for both country and city, as with the Arabic تونس, and only by context can one tell the difference. The name Tunis can be attributed to different origins and it is generally associated with the Berber root ⵜⵏⵙ, transcribed tns, which means to lay down or encampment
Tunisia
–
Ancient ruins of a
Roman villa at
Carthage
Tunisia
–
Flag
Tunisia
–
The Roman amphitheater in
El Djem, built during the first half of the 3rd century AD
Tunisia
–
Domes of the
Great Mosque of Kairouan. Founded in 670, it dates in its present form largely from the Aghlabid period (9th century). It is the oldest mosque in the
Maghreb.
13.
Roman architecture
–
Ancient Roman architecture adopted the external language of classical Greek architecture for the purposes of the ancient Romans, but differed from Greek buildings, becoming a new architectural style. The two styles are considered one body of classical architecture. Roman architecture flourished in the Roman Republic and even more so under the Empire and it used new materials, particularly concrete, and newer technologies such as the arch and the dome to make buildings that were typically strong and well-engineered. Large numbers remain in some form across the empire, sometimes complete, Roman Architecture covers the period from the establishment of the Roman Republic in 509 BC to about the 4th century AD, after which it becomes reclassified as Late Antique or Byzantine architecture. Almost no substantial examples survive from before about 100 BC, and most of the major survivals are from the later empire, after about 100 AD. They moved from trabeated construction mostly based on columns and lintels to one based on walls, punctuated by arches. The classical orders now became largely decorative rather than structural, except in colonnades, however, they did not feel entirely restricted by Greek aesthetic concerns, and treated the orders with considerable freedom. Innovation started in the 3rd or 2nd century BC with the development of Roman concrete as a readily available adjunct to, or substitute for, stone, more daring buildings soon followed, with great pillars supporting broad arches and domes. The freedom of concrete also inspired the colonnade screen, a row of decorative columns in front of a load-bearing wall. In smaller-scale architecture, concretes strength freed the floor plan from rectangular cells to a more free-flowing environment, factors such as wealth and high population densities in cities forced the ancient Romans to discover new architectural solutions of their own. The use of vaults and arches, together with a knowledge of building materials. Examples include the aqueducts of Rome, the Baths of Diocletian and the Baths of Caracalla and these were reproduced at a smaller scale in most important towns and cities in the Empire. Some surviving structures are almost complete, such as the walls of Lugo in Hispania Tarraconensis. The administrative structure and wealth of the empire made possible very large even in locations remote from the main centres, as did the use of slave labour. Especially under the empire, architecture often served a function, demonstrating the power of the Roman state in general. The influence is evident in many ways, for example, in the introduction and use of the Triclinium in Roman villas as a place, Roman builders employed Greeks in many capacities, especially in the great boom in construction in the early Empire. The Roman Architectural Revolution, also known as the Concrete Revolution, was the use in Roman architecture of the previously little-used architectural forms of the arch, vault. For the first time in history, their potential was fully exploited in the construction of a range of civil engineering structures, public buildings
Roman architecture
–
The
Colosseum in Rome, Italy
Roman architecture
–
An area at the
Ostia Antica archaeological site: at one time, shops were located here
Roman architecture
–
The Roman
Pantheon was the
largest dome in the world for more than a millennium. It is the largest unreinforced solid concrete dome to this day
Roman architecture
–
Dome of the
Pantheon, inner view
14.
Cologne
–
Cologne is the largest city in the German federal State of North Rhine-Westphalia and the fourth-largest city in Germany. It is located within the Rhine-Ruhr metropolitan region, one of the major European metropolitan areas, and with more than ten million inhabitants, Cologne is located on both sides of the Rhine River, less than eighty kilometres from Belgium. The citys famous Cologne Cathedral is the seat of the Catholic Archbishop of Cologne, the University of Cologne is one of Europes oldest and largest universities. Cologne was founded and established in Ubii territory in the first century AD as the Roman Colonia Claudia Ara Agrippinensium, Cologne, the French version of the citys name, has become standard in English as well. The city functioned as the capital of the Roman province of Germania Inferior, during the Middle Ages it flourished on one of the most important major trade routes between east and west in Europe. Cologne was one of the members of the Hanseatic League and one of the largest cities north of the Alps in medieval. Up until World War II the city had several occupations by the French. Cologne was one of the most heavily bombed cities in Germany during World War II, the bombing reduced the population by 95%, mainly due to evacuation, and destroyed almost the entire city. With the intention of restoring as many buildings as possible. Cologne is a cultural centre for the Rhineland, it hosts more than thirty museums. Exhibitions range from local ancient Roman archeological sites to contemporary graphics, the Cologne Trade Fair hosts a number of trade shows such as Art Cologne, imm Cologne, Gamescom, and the Photokina. The first urban settlement on the grounds of modern-day Cologne was Oppidum Ubiorum, founded in 38 BC by the Ubii, in 50 AD, the Romans founded Colonia on the Rhine and the city became the provincial capital of Germania Inferior in 85 AD. The city was named Colonia Claudia Ara Agrippinensium in 50 AD, considerable Roman remains can be found in present-day Cologne, especially near the wharf area, where a notable discovery of a 1900-year-old Roman boat was made in late 2007. From 260 to 271 Cologne was the capital of the Gallic Empire under Postumus, Marius, in 310 under Constantine a bridge was built over the Rhine at Cologne. Roman imperial governors resided in the city and it one of the most important trade. Cologne is shown on the 4th century Peutinger Map, maternus, who was elected as bishop in 313, was the first known bishop of Cologne. The city was the capital of a Roman province until occupied by the Ripuarian Franks in 462, parts of the original Roman sewers are preserved underneath the city, with the new sewerage system having opened in 1890. Early medieval Cologne was part of Austrasia within the Frankish Empire, Cologne had been the seat of a bishop since the Roman period, under Charlemagne, in 795, bishop Hildebold was promoted to archbishop
Cologne
–
From top to bottom, left to right:
Hohenzollern Bridge by night,
Great St. Martin Church,
Colonius TV-tower,
Cologne Cathedral,
Kranhaus buildings in
Rheinauhafen,
MediaPark
Cologne
–
Cologne around 1411
Cologne
–
Hängebrücke
Cologne
–
The devastation of Cologne, 1945
15.
Guyed mast
–
A guyed mast is a tall thin vertical structure that depends on guy lines for stability. The mast itself has the strength to support its own weight, but does not have the shear strength to stand unsupported. Guy lines are diagonal tensioned cables attached to the ground, usually spaced at equal angles about the base, to resist lateral forces such as wind loads. Guyed masts are used for radio antennas. The mast can either support aerials mounted at its top, or the structure itself can function as an antenna. In the latter case, the mast needs to be insulated from the ground, guyed radio masts are typically tall enough that they require several sets of guy lines,2 to 4, attached at different heights on the mast, to prevent them from buckling. An exception was the Blaw-Knox tower, widely used during the 1930s, sailing masts, the masts that support the sails on sailboats, are also typically guyed masts. Guyed masts are also used for meteorological measurements at certain heights above ground level. Sometimes they are used as pylons, although their usage in agricultural areas is problematic because anchor foundations handicaps ploughing, a partially guyed tower is a structure consisting of a guyed mast on top of a freestanding tower. The guys may be anchored to the top of the freestanding structure, a famous tower of this type is the Gerbrandy Tower. An example of the type is a utility pole at the end of a power line where the line ends or angles off in another direction. The pole requires guys in only one direction to support the lateral load of the power line in the other direction. The tallest guyed mast in the world is currently the 2,063 ft KVLY-TV mast near Blanchard, North Dakota, list of masts for examples of guyed mast structures. Radio masts and towers Partially guyed tower Additionally guyed tower Guy line
Guyed mast
–
A guyed radio mast. The guy lines are faintly visible.
Guyed mast
–
200 foot (61 m) radio mast of an AM radio station in Mount Vernon, Washington, USA, supported by three sets of 120° guy lines
Guyed mast
–
Guyed mast guy line
Guyed mast
–
Guyed mast guy line anchor
16.
Guy-wires
–
A guy-wire, guy-line, or guy-rope, also known as simply a guy, is a tensioned cable designed to add stability to a free-standing structure. They are used commonly in ship masts, radio masts, wind turbines, utility poles, fire service extension ladders used in church raises, a thin vertical mast supported by guy wires is called a guyed mast. Structures that support antennas are frequently of a construction and are called towers. One end of the guy is attached to the structure, and they are installed radially, usually at equal angles about the structure, in trios and quads. As the tower leans a bit due to the force, the increased guy tension is resolved into a compression force in the tower or mast. For example, antenna masts are often held up by three guy-wires at 120° angles, conductive guy cables for radio antenna masts may disturb the radiation pattern of the antenna, so their electrical characteristics must be included in the design. The guys supporting a sailboat mast are called standing rigging and in modern boats are stainless steel wire rope, guys are rigged to the bow and stern, usually as a single guy. Lateral guys attach to chain plates port and starboard attached to the hull, multiple guys are usually installed with spreaders to help keep the mast straight. Temporary guys are used on a sailboat, a fore-guy is a term for a line attached to. On a modern sloop-rigged sailboat with a spinnaker, the spinnaker pole is the spar most commonly controlled by one or more guys. Guys are particularly needed on dead-end poles, where a straight section of wire line ends. The lower end where the cable enters the ground is often encased in a length of yellow plastic reflector to make it more visible, in urban areas where the ground area around the pole is restricted, a variation called a sidewalk guy is often used. In this type the guy line extends diagonally from the top of the pole to a horizontal spar brace extending out from the middle of the pole, and from this it continues vertically to the ground. Thus the bottom part of the guy is vertical and does not obstruct headroom, an alternative to guy-wires sometimes used on dead-end poles is a push-brace pole, a second pole set at an angle in the ground which butts diagonally against the side of the vertical pole. Electromagnetic fields from the antennas complicate the design of guys that support mast antennas, conductive metal guy-wires whose lengths are near to quarter wavelength multiples of the transmitted frequency can distort the radiation pattern of the antenna. This also applies to guy wires of neighboring masts or metal structures situated nearby, to prevent this, each guy wire is divided by strain insulators into multiple sections, each segment non-resonant at the transmitted wavelength. Cylindrical or egg-shaped porcelain Johnny ball insulators are usually used, non-conductive guys of Kevlar fiber or extruded fiberglass rod are frequently used to not disturb the radiation pattern of the antennas. The strength and low stretch properties of Kevlar fiber approaches that of steel, however, Kevlar is very susceptible to ultraviolet degradation so it is enclosed in a UV resistant plastic sheath
Guy-wires
–
Closeup of anchor end of three guy-wires used to support the
KVLY-TV mast in North Dakota. Each guy is one member of a set of three that is located radially around the tower
Guy-wires
–
A yacht's mast is supported by
shrouds and
stays - nautical equivalents of guy wires.
Guy-wires
–
Guy-wire supported mast.
Guy-wires
–
AM antenna tower with guys attached through strain insulators at 120° angles
17.
Building
–
A building or edifice is a structure with a roof and walls standing more or less permanently in one place, such as a house or factory. To better understand the term building compare the list of nonbuilding structures, Buildings serve several needs of society – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a division of the human habitat. Ever since the first cave paintings, buildings have become objects or canvasses of much artistic expression. In recent years, interest in planning and building practices has also become an intentional part of the design process of many new buildings. The word building is both a noun and a verb also an adverb, the structure itself and the act of making it. As a noun, a building is a structure that has a roof and walls and stands more or less permanently in one place, there was a building on the corner. In the broadest interpretation a fence or wall is a building, however, the word structure is used more broadly than building including natural and man-made formations and does not necessarily have walls. Structure is more likely to be used for a fence, as a verb, building is the act of construction. Structural height in technical usage is the height to the highest architectural detail on building from street-level, depending on how they are classified, spires and masts may or may not be included in this height. Spires and masts used as antennas are not generally included, the definition of a low-rise vs. a high-rise building is a matter of debate, but generally three storeys or less is considered low-rise. A report by Shinichi Fujimura of a shelter built 500000 years ago is doubtful since Fujimura was later found to have faked many of his findings. Supposed remains of huts found at the Terra Amata site in Nice purportedly dating from 200000 to 400000 years ago have also called into question. There is clear evidence of homebuilding from around 18000 BC, Buildings became common during the Neolithic. Single-family residential buildings are most often called houses or homes, residential buildings containing more than one dwelling unit are called a duplex, apartment building to differentiate them from individual houses. A condominium is an apartment that the occupant owns rather than rents, houses which were built as a single dwelling may later be divided into apartments or bedsitters, they may also be converted to another use e. g. an office or a shop. Building types may range from huts to multimillion-dollar high-rise apartment blocks able to house thousands of people, increasing settlement density in buildings is usually a response to high ground prices resulting from many people wanting to live close to work or similar attractors. Other common building materials are brick, concrete or combinations of either of these with stone, also if the residents are in need of special care such as a nursing home, orphanage or prison, or in group housing like barracks or dormitories
Building
–
The
Hôtel de Ville, building in
Paris,
France
Building
–
A
Shaolin Monastery building in
China
Building
–
A building and
skybridge in
Munich,
Germany
Building
–
The Rotunda in
Hellerup,
Denmark, a cylindric building made in steel frame and aluminum
18.
Height
–
Height is the measure of vertical distance, either how tall something is, or how high up it is. For example The height of the building is 50 m or The height of the airplane is 10,000 m, when used to describe how high something like an airplane or mountain peak is from sea level, height is more often called altitude. Height is measured along the axis between a specified point and another. English high is derived from Old English hēah, ultimately from Proto-Germanic *xauxa-z, the derived noun height, also the obsolete forms heighth and highth, is from Old English híehþo, later héahþu, as it were from Proto-Germanic *xaux-iþa. In elementary models of space, height may indicate the third dimension, height is normal to the plane formed by the length and width. Height is also used as a name for more abstract definitions. Although height is relative to a plane of reference, most measurements of height in the world are based upon a zero surface. Both altitude and elevation, two synonyms for height, are defined as the position of a point above the mean sea level. One can extend the surface under the continents, naively. In practice, the sea level under a continent has to be computed from gravity measurements, instead of using the sea level, geodesists often prefer to define height from the surface of a reference ellipsoid, see Geodetic system, vertical datum. Defining the height of geographic landmarks becomes a question of reference, in aviation terminology, the terms height, altitude, and elevation are not synonyms. Usually, the altitude of an aircraft is measured from sea level, Elevation is also measured from sea level, but is most often regarded as a property of the ground. Thus, elevation plus height can equal altitude, but the term altitude has several meanings in aviation, Human height is one of the areas of study within anthropometry. While height variations within a population are largely genetic, height variations between populations are mostly environmental, the United Nations uses height to monitor changes in the nutrition of developing nations. In human populations, average height can distill down complex data about the birth, upbringing, social class, diet. Acrophobia Centimetre–gram–second system of units Chinese units of measurement Elevation Human height Imperial units International System of Units United States customary units
Height
–
A
cuboid demonstrating the dimensions
length,
width, and height
19.
Clock towers
–
Clock towers are a specific type of building which houses a turret clock and has one or more clock faces on the upper exterior walls. Many clock towers are freestanding structures but they can also adjoin or be located on top of another building, Clock towers are a common sight in many parts of the world with some being iconic buildings. One example is the Elizabeth Tower in London, there are many structures which may have clocks or clock faces attached to them and some structures have had clocks added to an existing structure. According to the Council on Tall Buildings and Urban Habitat a building is defined as a building if at least fifty percent of its height is made up of plates containing habitable floor area. Structures that do not meet this criterion, are defined as towers, not all clocks on buildings therefore make the building into a clock tower. The mechanism inside the tower is known as a turret clock and it often marks the hour by sounding large bells or chimes, sometimes playing simple musical phrases or tunes. Although clock towers are today mostly admired for their aesthetics, they served an important purpose. Before the middle of the century, most people did not have watches. The first clocks didnt have faces, but were solely striking clocks and they were therefore placed in towers so the bells would be audible for a long distance. Clock towers were placed near the centres of towns and were often the tallest structures there, as clock towers became more common, the designers realized that a dial on the outside of the tower would allow the townspeople to read the time whenever they wanted. The use of clock towers dates back to the antiquity, the earliest clock tower was the Tower of the Winds in Athens which featured eight sundials. In its interior, there was also a clock, driven by water coming down from the Acropolis. In Song China, a clock tower was designed by Su Song and erected at Kaifeng in 1088. In England, a clock was put up in a tower, the medieval precursor to Big Ben, at Westminster, in 1288. Al-Jazari constructed a clock and described it in his Book of Knowledge of Ingenious Mechanical Devices in 1206. It was about 3.3 metres high, and had multiple functions alongside timekeeping, line synchronous tower clocks were introduced in the United States in the 1920s. Some clock towers have become famous landmarks, the Allen-Bradley Clock Tower in Milwaukee, Wisconsin has the largest four faced clock in the world, with clock diameter 40 ft 3 1⁄2 in, it is 283 ft tall. The Elizabeth Tower has the largest chiming clock in the world, the tallest freestanding clock tower in the world is the Joseph Chamberlain Memorial Clock Tower at the University of Birmingham in Birmingham, United Kingdom
Clock towers
–
Big Ben, atop Elizabeth Tower,
Westminster,
London
Clock towers
–
Tower of the Winds in
Athens
Clock towers
–
Top-left:
Clock towers
–
'Old Joe': the tallest freestanding clock tower in the world.
20.
Castle
–
A castle is a type of fortified structure built in Europe and the Middle East during the Middle Ages by European nobility. Scholars debate the scope of the castle, but usually consider it to be the private fortified residence of a lord or noble. Usage of the term has varied over time and has applied to structures as diverse as hill forts. Over the approximately 900 years that castles were built, they took on a great many forms with different features, although some, such as curtain walls. A European innovation, castles originated in the 9th and 10th centuries, after the fall of the Carolingian Empire resulted in its territory being divided among individual lords and princes. Although their military origins are often emphasised in castle studies, the structures served as centres of administration. Many castles were built from earth and timber, but had their defences replaced later by stone. Early castles often exploited natural defences, lacking features such as towers and arrowslits, in the late 12th and early 13th centuries, a scientific approach to castle defence emerged. This led to the proliferation of towers, with an emphasis on flanking fire, many new castles were polygonal or relied on concentric defence – several stages of defence within each other that could all function at the same time to maximise the castles firepower. These changes in defence have been attributed to a mixture of castle technology from the Crusades, such as concentric fortification, not all the elements of castle architecture were military in nature, so that devices such as moats evolved from their original purpose of defence into symbols of power. Some grand castles had long winding approaches intended to impress and dominate their landscape, while castles continued to be built well into the 16th century, new techniques to deal with improved cannon fire made them uncomfortable and undesirable places to live. As a result, true castles went into decline and were replaced by artillery forts with no role in civil administration, and country houses that were indefensible. From the 18th century onwards, there was a renewed interest in castles with the construction of castles, part of a romantic revival of Gothic architecture. The word castle is derived from the Latin word castellum, which is a diminutive of the word castrum, meaning fortified place. The Old English castel, Old French castel or chastel, French château, Spanish castillo, Italian castello, the word castle was introduced into English shortly before the Norman Conquest to denote this type of building, which was then new to England. In its simplest terms, the definition of a castle accepted amongst academics is a fortified residence. Feudalism was the link between a lord and his vassal where, in return for service and the expectation of loyalty. Castles served a range of purposes, the most important of which were military, administrative, as well as defensive structures, castles were also offensive tools which could be used as a base of operations in enemy territory
Castle
–
The
Alcázar of Segovia in Spain overlooking the city
Castle
–
Bodiam Castle in
East Sussex, England, surrounded by a water-filled
moat
Castle
–
The
Norman "White Tower", the
keep of the
Tower of London, exemplifies all uses of a castle including city defence, a residence, and a place of refuge in times of crisis.
Castle
–
Windsor Castle in England was founded as a fortification during the
Norman Conquest and today is one of the principal official residences of Queen
Elizabeth II.
21.
Telecommunication
–
Telecommunication is the transmission of signs, signals, messages, writings, images and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems. Telecommunication occurs when the exchange of information between communication participants includes the use of technology and it is transmitted either electrically over physical media, such as cables, or via electromagnetic radiation. Such transmission paths are divided into communication channels which afford the advantages of multiplexing. The term is used in its plural form, telecommunications. Early means of communicating over a distance included visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, other examples of pre-modern long-distance communication included audio messages such as coded drumbeats, lung-blown horns, and loud whistles. Zworykin, John Logie Baird and Philo Farnsworth, the word telecommunication is a compound of the Greek prefix tele, meaning distant, far off, or afar, and the Latin communicare, meaning to share. Its modern use is adapted from the French, because its use was recorded in 1904 by the French engineer. Communication was first used as an English word in the late 14th century, in the Middle Ages, chains of beacons were commonly used on hilltops as a means of relaying a signal. Beacon chains suffered the drawback that they could pass a single bit of information. One notable instance of their use was during the Spanish Armada, in 1792, Claude Chappe, a French engineer, built the first fixed visual telegraphy system between Lille and Paris. However semaphore suffered from the need for skilled operators and expensive towers at intervals of ten to thirty kilometres, as a result of competition from the electrical telegraph, the last commercial line was abandoned in 1880. Homing pigeons have occasionally used throughout history by different cultures. Pigeon post is thought to have Persians roots and was used by the Romans to aid their military, frontinus said that Julius Caesar used pigeons as messengers in his conquest of Gaul. The Greeks also conveyed the names of the victors at the Olympic Games to various cities using homing pigeons, in the early 19th century, the Dutch government used the system in Java and Sumatra. And in 1849, Paul Julius Reuter started a service to fly stock prices between Aachen and Brussels, a service that operated for a year until the gap in the telegraph link was closed. Sir Charles Wheatstone and Sir William Fothergill Cooke invented the telegraph in 1837. Also, the first commercial electrical telegraph is purported to have constructed by Wheatstone and Cooke. Both inventors viewed their device as an improvement to the electromagnetic telegraph not as a new device, samuel Morse independently developed a version of the electrical telegraph that he unsuccessfully demonstrated on 2 September 1837
Telecommunication
–
A satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany
Telecommunication
–
Visualization from the
Opte Project of the various routes through a portion of the Internet.
Telecommunication
–
A replica of one of
Chappe's semaphore towers.
Telecommunication
–
Optical fiber provides cheaper bandwidth for long distance communication.
22.
Old English
–
Old English or Anglo-Saxon is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages. It was brought to Great Britain by Anglo-Saxon settlers probably in the mid 5th century, Old English developed from a set of Anglo-Frisian or North Sea Germanic dialects originally spoken by Germanic tribes traditionally known as the Angles, Saxons, and Jutes. As the Anglo-Saxons became dominant in England, their language replaced the languages of Roman Britain, Common Brittonic, a Celtic language, Old English had four main dialects, associated with particular Anglo-Saxon kingdoms, Mercian, Northumbrian, Kentish and West Saxon. It was West Saxon that formed the basis for the standard of the later Old English period, although the dominant forms of Middle. The speech of eastern and northern parts of England was subject to strong Old Norse influence due to Scandinavian rule, Old English is one of the West Germanic languages, and its closest relatives are Old Frisian and Old Saxon. Like other old Germanic languages, it is different from Modern English. Old English grammar is similar to that of modern German, nouns, adjectives, pronouns, and verbs have many inflectional endings and forms. The oldest Old English inscriptions were using a runic system. Old English was not static, and its usage covered a period of 700 years, from the Anglo-Saxon settlement of Britain in the 5th century to the late 11th century, some time after the Norman invasion. While indicating that the establishment of dates is a process, Albert Baugh dates Old English from 450 to 1150, a period of full inflections. Perhaps around 85 per cent of Old English words are no longer in use, Old English is a West Germanic language, developing out of Ingvaeonic dialects from the 5th century. It came to be spoken over most of the territory of the Anglo-Saxon kingdoms which became the Kingdom of England and this included most of present-day England, as well as part of what is now southeastern Scotland, which for several centuries belonged to the Anglo-Saxon kingdom of Northumbria. Other parts of the island – Wales and most of Scotland – continued to use Celtic languages, Norse was also widely spoken in the parts of England which fell under Danish law. Anglo-Saxon literacy developed after Christianisation in the late 7th century, the oldest surviving text of Old English literature is Cædmons Hymn, composed between 658 and 680. There is a corpus of runic inscriptions from the 5th to 7th centuries. The Old English Latin alphabet was introduced around the 9th century, with the unification of the Anglo-Saxon kingdoms by Alfred the Great in the later 9th century, the language of government and literature became standardised around the West Saxon dialect. In Old English, typical of the development of literature, poetry arose before prose, a later literary standard, dating from the later 10th century, arose under the influence of Bishop Æthelwold of Winchester, and was followed by such writers as the prolific Ælfric of Eynsham. This form of the language is known as the Winchester standard and it is considered to represent the classical form of Old English
Old English
–
A detail of the first page of the
Beowulf manuscript, showing the words "ofer hron rade", i.e. "over the whale's road (=sea)". It is an example of an Old English stylistic device, the
kenning.
Old English
–
North Germanic
Old English
–
"Her swutelað seo gecwydrædnes ðe" Old English inscription over the arch of the south porticus in the 10th-century
St Mary's parish church, Breamore, Hampshire
Old English
–
The first page of the
Beowulf manuscript with its opening Hƿæt ƿē Gārde/na ingēar dagum þēod cyninga / þrym ge frunon... "Listen! We of the Spear-Danes from days of yore have heard of the glory of the folk-kings..."
23.
Old French
–
Old French was the Gallo-Romance dialect continuum spoken from the 9th century to the 14th century. In the 14th century, these came to be collectively known as the langues doïl. The mid-14th century is taken as the period to Middle French. The areal of Old French in contemporary terms corresponded to the parts of the Kingdom of France, Upper Burgundy. As part of the emerging Gallo-Romance dialect continuum, the langues doïl were contrasted with the langue doc, in these examples, we notice a clear consequence of bilingualism, that sometimes even changed the first syllable of the Latin words. Pope estimated that perhaps still 15% of the vocabulary of modern French derives from Germanic sources, at the third Council of Tours in 813, priests were ordered to preach in the vernacular language, since the common people could no longer understand formal Latin. The second-oldest document in Old French is the Eulalia sequence, which is important for reconstruction of Old French pronunciation due to its consistent spelling. The Capetians langue doïl, the forerunner of modern standard French, did not begin to become the common speech of all of France, however, until after the French Revolution. In the Late Middle Ages, the Old French dialects diverged into a number of distinct langues doïl, during the Early Modern period, French now becomes established as the official language of the Kingdom of France throughout the realm, also including the langue doc-speaking territories in the south. Old French gives way to Middle French in the mid-14th century, the earliest extant French literary texts date from the ninth century, but very few texts before the 11th century have survived. The first literary works written in Old French were saints lives, the Canticle of Saint Eulalie, written in the second half of the 9th century, is generally accepted as the first such text. The first of these is the area of the chansons de geste. More than one hundred chansons de geste have survived in three hundred manuscripts. The oldest and most celebrated of the chansons de geste is The Song of Roland, a fourth grouping, not listed by Bertrand, is the Crusade cycle, dealing with the First Crusade and its immediate aftermath. Jean Bodels other two categories—the Matter of Rome and the Matter of Britain—concern the French romance or roman, around a hundred verse romances survive from the period 1150–1220. From around 1200 on, the tendency was increasingly to write the romances in prose, the most important romance of the 13th century is the Romance of the Rose which breaks considerably from the conventions of the chivalric adventure story. The Occitan or Provençal poets were called troubadours, from the word trobar to find, lyric poets in Old French are called trouvères. By the late 13th century, the tradition in France had begun to develop in ways that differed significantly from the troubadour poets
Old French
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Map of France in 1180, at the height of the
feudal system. The
possessions of the French king are in light blue, vassals to the French king in green,
Angevin possessions in red. Shown in white is the
Holy Roman Empire to the east, the western fringes of which, including
Upper Burgundy and
Lorraine were also part of the Old French areal.
24.
Illyrian language
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The Illyrian languages are part of the Indo-European language family. The relation of the Illyrian languages to other Indo-European languages—ancient and modern—is poorly understood due to the paucity of data and is still being examined, a grouping of Illyrian with the Messapian language has been proposed for about a century, but remains an unproven hypothesis. The theory is based on sources, archaeology and onomastics. Messapian material culture bears a number of similarities to Illyrian material culture, Some Messapian anthroponyms have close Illyrian equivalents. A grouping of Illyrian with the Venetic language and Liburnian language, once spoken in northeastern Italy, the consensus now is that Illyrian was quite distinct from Venetic and Liburnian. The relation between Venetic and Illyrian was later discredited and they are no longer considered closely related and they also point to other toponyms including Osseriates derived from /*eghero/ or Birziminium from PIE /*bherǵh/ or Asamum from PIE /*aḱ-mo/. For example, Vescleves has been explained as PIE *wesu-ḱlewes, also, the name Acrabanus as a compound name has been compared with Ancient Greek /akros/ with no signs of palatalization, or Clausal has been related to /*klew/. However, it has shown that even in Albanian and Balto-Slavic. Even the name Gentius or Genthius does not help to solve the problem since we have two Illyrian forms Genthius and Zanatis. If Gentius or Genthius derives from *ǵen- this is proof of a Centum language, another problem related to the name Gentius is that nowadays it cannot be stated surely if the initial /g/ of the sources was a palatovelar or a labiovelar. However, the insufficiency of this theory is that so far there is no certainty as to the historical or etymological development of either ardhja/hardhi or Ardiaioi, as with many other words. Bindo/Bindus, an Illyrian deity from Bihać, Bosnia and Herzegovina, cf. Alb. bind to convince or to make believe, bilia daughter, cf. Alb. bijë, dial. I madh big, great mantía bramblebush, Old and dial, Alb. mandë berry, mulberry Ragusa-Ragusium grape, cf. Proto-Alb. Ragusha rhinos fog, mist, cf. Old Alb. ren cloud Vendum place, wen-ta The Greeks were the first literate people to come into frequent contact with the speakers of Illyrian languages. Their conception of Illyrioi, however, differed from what the Romans would later call Illyricum, the Greek term encompassed only the peoples who lived on the borders of Macedonia and Epirus. Pliny the Elder, in his work Natural History, applies a stricter usage of the term Illyrii when speaking of Illyrii proprie dicti among the communities in the south of Roman Dalmatia. For a couple of centuries before and after the Roman conquest in the late 1st century BC, finally it encompassed all native peoples from the Adriatic to the Danube, inhabiting the Roman provinces of Dalmatia, Pannonia and Moesia, regardless of their ethnic and cultural differences. An extensive study of Illyrian names and territory was undertaken by Hans Krahe in the first decades of the twentieth century
Illyrian language
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Illyrian tribes in antiquity.
25.
Tyrrhenians
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The Tyrrhenians or Tyrsenians is an exonym used by Greek authors to refer to a non-Greek people. The origin of the name is uncertain and it is only known to be used by Greek authors, but apparently not of Greek origin. It has been connected to tursis, also a Mediterranean loan into Greek, direct connections with Tusci, the Latin exonym for the Etruscans, from Turs-ci have also been attempted. The earliest instances in literature are in Hesiod and the Homeric hymn to Dionysus, Hesiod has And they ruled over the famous Tyrsenians, very far off in a recess of the holy islands. The Homeric hymn to Dionysus has Tyrsenian pirates seizing Dionysus, Presently there came swiftly over the sparkling sea Tyrsenian pirates on a well-decked ship — a miserable doom led them on. Later, in the 6th to 5th centuries BC, the name referred specifically to the Etruscans, for whom the Tyrrhenian Sea is named, the name is also attested in a fragment by Sophocles. The name becomes increasingly associated with the generic Pelasgians, herodotus places them in Crestonia in Thrace, as neighbours of the Pelasgians. Similarly, Thucydides mentions them together with the Pelasgians and associates them with Lemnian pirates, Lemnos remained relatively free of Greek influence up to Hellenistic times, and the Lemnos stele of the 6th century BC is inscribed with a language very similar to Etruscan. This has led to the postulation of a Tyrrhenian language group comprising Etruscan, Lemnian, there is thus evidence that there was indeed at least a linguistic relationship between the Lemnians and the Etruscans. Spard or Sard, another closely connected to the name Tyrrhenian, was the capital city of the land of Lydia. The name preserved by Greek and Egyptian renderings is Sard, for the Greeks call it Sardis and the name appears in the Egyptian inscriptions as Srdn
Tyrrhenians
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History
26.
Etruscans
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The Etruscan civilization is the modern name given to a powerful and wealthy civilization of ancient Italy in the area corresponding roughly to Tuscany, western Umbria, and northern Lazio. Culture that is identifiably Etruscan developed in Italy after about 800 BC, the latter gave way in the 7th century BC to a culture that was influenced by ancient Greece, Magna Graecia, and Phoenicia. The decline was gradual, but by 500 BC the political destiny of Italy had passed out of Etruscan hands, the last Etruscan cities were formally absorbed by Rome around 100 BC. Politics were based on the city, and probably the family unit. In their heyday, the Etruscan elite grew very rich through trade with the Celtic world to the north and the Greeks to the south, archaic Greece had a huge influence on their art and architecture, and Greek mythology was evidently very familiar to them. The study also excluded recent Anatolian connection, the ancient Romans referred to the Etruscans as the Tuscī or Etruscī. Their Roman name is the origin of the terms Tuscany, which refers to their heartland, and Etruria, which can refer to their wider region. In Attic Greek, the Etruscans were known as Tyrrhenians, from which the Romans derived the names Tyrrhēnī, Tyrrhēnia, the word may also be related to the Hittite Taruisa. The Etruscans called themselves Rasenna, which was syncopated to Rasna or Raśna, the origins of the Etruscans are mostly lost in prehistory, although Greek historians as early as the 5th century BC, repeatedly associated the Tyrrhenians with Pelasgians. Strabo as well as the Homeric Hymn to Dionysus make mention of the Tyrrhenians as pirates, pliny the Elder put the Etruscans in the context of the Rhaetian people to the north and wrote in his Natural History, Adjoining these the Noricans are the Raeti and Vindelici. All are divided into a number of states, the Raeti are believed to be people of Tuscan race driven out by the Gauls, their leader was named Raetus. Historians have no literature and no original Etruscan texts of religion or philosophy, therefore, much of what is known about this civilization is derived from grave goods, another source of genetic data on Etruscan origins is from four ancient breeds of cattle. Analyzing the mitochondrial DNA of these and seven other breeds of Italian cattle, the other Italian breeds were linked to northern Europe. Etruscan expansion was focused both to the north beyond the Apennine Mountains and into Campania, some small towns in the sixth century BC disappeared during this time, ostensibly consumed by greater, more powerful neighbours. However, it is certain that the structure of the Etruscan culture was similar to, albeit more aristocratic than. The mining and commerce of metal, especially copper and iron, led to an enrichment of the Etruscans and to the expansion of their influence in the Italian peninsula and the western Mediterranean Sea. Here, their interests collided with those of the Greeks, especially in the sixth century BC and this led the Etruscans to ally themselves with Carthage, whose interests also collided with the Greeks. Around 540 BC, the Battle of Alalia led to a new distribution of power in the western Mediterranean, from the first half of the 5th century BC, the new political situation meant the beginning of the Etruscan decline after losing their southern provinces
Etruscans
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Etruscan pendant with
swastika symbols,
Bolsena,
Italy, 700-650 BC.
Louvre Museum
Etruscans
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Extent of Etruscan civilization and the twelve Etruscan League cities.
Etruscans
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Etruscan riders, Silver panel 540-520BC, Castel San Marino, near
Perugia
Etruscans
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Etruscan walled town,
Civita di Bagnoregio.
27.
PPNA Wall of Jericho
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The Wall of Jericho was a Pre-Pottery Neolithic A defensive or flood protection wall suggested to date to approximately 8000 BC. If interpreted as a fortification, the Wall of Jericho is the oldest city wall discovered by archaeologists anywhere in the world. It is built of undressed stones and is located at the mound known as Tell es-Sultan. The topic of this article is the unique Neolithic-age stone wall, other walls, such as contemporary house walls, or later, Bronze and Iron Age city walls, are only mentioned for the sake of context. One wall was excavated by Sir Charles Warren in 1868 at the request of the Palestine Exploration Fund and he dug through the mud bricks of the wall without realizing what it was, suggesting there was little of interest at the site. Ernest Sellin and Carl Watzinger excavated Jericho between 1907 and 1909 and found the remains of two walls which they initially suggested supported the biblical account and they later revised this conclusion and dated their finds to the Middle Bronze Age. The site was excavated by John Garstang between 1930 and 1936, who again raised the suggestion that remains of the upper wall was that described in the Bible. Kathleen Kenyon resumed extensive excavations between 1952 and 1958 and found no late Bronze Age defensive wall or pottery and her excavations found a series of seventeen early Bronze Age walls, some of which she thought may have been destroyed by earthquakes. The last of the walls was put together in a hurry, another wall was built by a more sophisticated culture in the Middle Bronze Age with a steep plastered escarpment leading up to mud bricks on top. After this there was a hiatus until later Iron Age material dating to around the seventh century BC. This time period was called the Pre-Pottery Neolithic A, a late phase of the Stone Age predating the invention of pottery. It surrounded and protected a Neolithic settlement which contained a community of between 2,000 and 3,000 people. The Neolithic wall was complemented by a tower built into it. Furthermore, the construction of such a project implies some sort of organization, division of labour. Surrounding the wall was a ditch 8.2 metres wide by 2.7 metres deep, kathleen Kenyon commented on the work involved in the construction of the ditch, The labor involved in excavating this ditch out of solid rock must have been tremendous. As we have discovered nothing in the way of heavy flint picks, one can only suppose that it was carried out with stone mauls, perhaps helped by splitting with fire and water. The town of Jericho, which was about 2.5 hectares in size, in fact, evidence suggests that construction started prior to the agricultural revolution. The town contained round mud-brick houses, yet no street planning, despite the existence of the wall and tower, Jericho was still a proto-city, much like Çatalhöyük
PPNA Wall of Jericho
–
Trihedral Neolithic stone maul from
Joub Jannine II, Lebanon. The type of tool suggested by Kathleen Kenyon to have been used to dig the 8 x 3 x 600 m ditch out of solid
rock at ca. 9000 to 8000 BC.
28.
Ziggurat
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A ziggurat was a massive structure built in ancient Mesopotamia and the western Iranian plateau. It had the form of a step pyramid of successively receding stories or levels. Notable ziggurats include the Great Ziggurat of Ur near Nasiriyah, the Ziggurat of Aqar Quf near Baghdad, Ziggurats were built by the ancient Sumerians, Babylonians, Elamites, Akkadians, and Assyrians for local religions. Each ziggurat was part of a complex which included other buildings. The precursors of the ziggurat were raised platforms that date from the Ubaid period during the fourth millennium BCE, the earliest ziggurats began as a platform, the ziggurat was a pyramidal structure with a flat top. Sun-baked bricks made up the core of the ziggurat with facings of fired bricks on the outside, each step was slightly smaller than the step below it. The facings were often glazed in different colors and may have had astrological significance, kings sometimes had their names engraved on these glazed bricks. The number of floors ranged from two to seven, according to archaeologist Harriet Crawford, It is usually assumed that the ziggurats supported a shrine, though the only evidence for this comes from Herodotus, and physical evidence is nonexistent. It has also suggested by a number of scholars that this shrine was the scene of the sacred marriage. Herodotus describes the furnishing of the shrine on top of the ziggurat at Babylon, the god Marduk was also said to come and sleep in his shrine. The likelihood of such a shrine ever being found is sadly remote, erosion has usually reduced the surviving ziggurats to a fraction of their original height, but textual evidence may yet provide more facts about the purpose of these shrines. Access to the shrine would have been by a series of ramps on one side of the ziggurat or by a ramp from base to summit. The Mesopotamian ziggurats were not places for worship or ceremonies. They were believed to be dwelling places for the gods and each city had its own patron god, only priests were permitted on the ziggurat or in the rooms at its base, and it was their responsibility to care for the gods and attend to their needs. The priests were very powerful members of Sumerian society, one of the best-preserved ziggurats is Chogha Zanbil in western Iran. The Sialk ziggurat, in Kashan, Iran, is the oldest known ziggurat, Ziggurat designs ranged from simple bases upon which a temple sat, to marvels of mathematics and construction which spanned several terraced stories and were topped with a temple. An example of a simple ziggurat is the White Temple of Uruk, the ziggurat itself is the base on which the White Temple is set. Its purpose is to get the temple closer to the heavens, the Mesopotamians believed that these pyramid temples connected heaven and earth
Ziggurat
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The reconstructed facade of the
Neo-Sumerian Great Ziggurat of Ur, near
Nasiriyah,
Iraq
Ziggurat
–
CAD rendering of
Sialk 's largest ziggurat based on archeological evidence.
.JPG)
