1.
Summit
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A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically, a summit is a maximum in elevation. The topographic terms acme, apex, peak, and zenith are synonymous, the UIAA definition is that a summit is independent if it has a prominence of 30 metres or more, it is a mountain if it has a prominence of at least 300 metres. This can be summarised as follows, A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top, Summit may also refer to the highest point along a line, trail, or route. In many parts of the western United States, the term refers to the highest point along a road, highway. For example, the highest point along Interstate 80 in California is referred to as Donner Summit while the highest point on Interstate 5 is Siskiyou Mountain Summit, geoid Hill List of highest mountains Maxima and minima Nadir Summit accordance Peak finder
2.
Topographic prominence
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It is a measure of the independence of a summit. A peaks key col is a point on this contour line. By convention, the prominence of Mount Everest, the Earths highest mountain, is taken to equal the elevation of its summit above sea level, if the peaks prominence is P metres, to get from the summit to any higher terrain one must descend at least P metres. Together with the convention for Mount Everest, this implies that the prominence of any island or continental highpoint is equal to its elevation above sea level, for every ridge connecting the peak to higher terrain, find the lowest point on the ridge. The key col is defined as the highest of these cols, the prominence is the difference between the elevation of the peak and the elevation of the key col. The following mental exercise may illustrate the meaning of topographic prominence, imagine you are standing at the top of a peak and imagine that an imaginary sea level rises to your feet. Now slowly lower the sea level and an imaginary island appears beneath your feet. Your island will grow and will merge with other islands that emerge, the parent peak may be either close or far from the subject peak. The summit of Mount Everest is the parent peak of Aconcagua at a distance of 17,755 km, the key col may also be close or far from the subject peak. The key col for Aconcagua is the Bering Strait at a distance of 13,655 km, the key col for the South Summit of Mount Everest is about 100 m distant. Prominence is interesting to many mountaineers because it is a measurement that is strongly correlated with the subjective significance of a summit. Peaks with low prominences are either subsidiary tops of some higher summit or relatively insignificant independent summits, peaks with high prominences tend to be the highest points around and are likely to have extraordinary views. Only summits with a sufficient degree of prominence are regarded as independent mountains, for example, the worlds second-highest mountain is K2. While Mount Everests South Summit is taller than K2, it is not considered an independent mountain because it is a subsummit of the main summit, many lists of mountains take topographic prominence as a criterion for inclusion, or cutoff. John and Anne Nuttalls The Mountains of England and Wales uses a cutoff of 15 m, in the contiguous United States, the famous list of fourteeners uses a cutoff of 300 ft /91 m. Also in the U. S.2000 feet of prominence has become a threshold that signifies that a peak has major stature. This generates lists of peaks ranked by prominence, which are different from lists ranked by elevation. Such lists tend to emphasize isolated high peaks, such as range or island high points, one advantage of a prominence-ranked list is that it needs no cutoff, since a peak with high prominence is automatically an independent peak
3.
Ultra-prominent peak
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An ultra-prominent peak, or Ultra for short, is defined as a mountain summit with a topographic prominence of 1,500 metres or more. There are approximately 1,524 such peaks on Earth, some peaks, such as the Matterhorn and Eiger, are not Ultras because they are connected to higher mountains by high cols and therefore do not achieve enough topographic prominence. The term Ultra is due to earth scientist Stephen Fry, from his studies of the prominence of peaks in Washington in the 1980s and his original term was ultra major mountain, referring to peaks with at least 5,000 ft of prominence. Currently,1,515 Ultras have been identified worldwide,637 in Asia,355 in North America,209 in South America,119 in Europe,84 in Africa,69 in Australasia and 39 in Antarctica. Many of the worlds largest mountains are Ultras, including Mount Everest, K2, Kilimanjaro, Mont Blanc, on the other hand, others such as the Eiger and the Matterhorn are not Ultras because they do not have sufficient prominence. In British Columbia, some of the mountains listed do not even have generally recognized names, a number of Ultras have yet to be climbed, with Sauyr Zhotasy, Mount Siple, and Gangkar Puensum being the most likely candidates for the most prominent unclimbed mountain in the world. All of the Seven Summits are Ultras by virtue of the fact that they are the points of large landmasses. Each has its key col at or near sea level, resulting in a value almost equal to its elevation. List of peaks by prominence gives the 125 most prominent peaks worldwide
4.
Geographic coordinate system
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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are chosen such that one of the numbers represents a vertical position. A common choice of coordinates is latitude, longitude and elevation, to specify a location on a two-dimensional map requires a map projection. The invention of a coordinate system is generally credited to Eratosthenes of Cyrene. Ptolemy credited him with the adoption of longitude and latitude. Ptolemys 2nd-century Geography used the prime meridian but measured latitude from the equator instead. Mathematical cartography resumed in Europe following Maximus Planudes recovery of Ptolemys text a little before 1300, in 1884, the United States hosted the International Meridian Conference, attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich, the Dominican Republic voted against the motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911, the latitude of a point on Earths surface is the angle between the equatorial plane and the straight line that passes through that point and through the center of the Earth. Lines joining points of the same latitude trace circles on the surface of Earth called parallels, as they are parallel to the equator, the north pole is 90° N, the south pole is 90° S. The 0° parallel of latitude is designated the equator, the plane of all geographic coordinate systems. The equator divides the globe into Northern and Southern Hemispheres, the longitude of a point on Earths surface is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses, which converge at the north and south poles, the prime meridian determines the proper Eastern and Western Hemispheres, although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E, the combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The grid formed by lines of latitude and longitude is known as a graticule, the origin/zero point of this system is located in the Gulf of Guinea about 625 km south of Tema, Ghana. To completely specify a location of a feature on, in, or above Earth. Earth is not a sphere, but a shape approximating a biaxial ellipsoid. It is nearly spherical, but has an equatorial bulge making the radius at the equator about 0. 3% larger than the radius measured through the poles, the shorter axis approximately coincides with the axis of rotation
5.
Peloponnese
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The Peloponnese or Peloponnesus is a peninsula and geographic region in southern Greece. It is separated from the part of the country by the Gulf of Corinth. During the late Middle Ages and the Ottoman era, the peninsula was known as the Morea, the peninsula is divided among three administrative regions, most belongs to the Peloponnese region, with smaller parts belonging to the West Greece and Attica regions. In 2016, Lonely Planet voted the Peloponnese the top spot of their Best in Europe list, the Peloponnese is a peninsula that covers an area of some 21,549.6 square kilometres and constitutes the southernmost part of mainland Greece. It has two connections with the rest of Greece, a natural one at the Isthmus of Corinth. The peninsula has an interior and deeply indented coasts. The Peloponnese possesses four south-pointing peninsulas, the Messenian, the Mani, the Cape Malea, mount Taygetus in the south is the highest mountain in the Peloponnese, at 2,407 metres. Οther important mountains include Cyllene in the northeast, Aroania in the north, Erymanthos and Panachaikon in the northwest, Mainalon in the center, the entire peninsula is earthquake prone and has been the site of many earthquakes in the past. The longest river is the Alfeios in the west, followed by the Evrotas in the south, extensive lowlands are found only in the west, with the exception of the Evrotas valley in the south and in the Argolid in the northeast. The Peloponnese is home to spectacular beaches, which are a major tourist draw. Two groups of islands lie off the Peloponnesian coast, the Argo-Saronic Islands to the east, the island of Kythera, off the Epidaurus Limera peninsula to the south of the Peloponnese, is considered to be part of the Ionian Islands. The island of Elafonissos used to be part of the peninsula but was separated following the quake of 365 AD. Since antiquity, and continuing to the present day, the Peloponnese has been divided into seven regions, Achaia, Corinthia, Argolid, Arcadia, Laconia, Messinia. Each of these regions is headed by a city, the largest city is Patras in Achaia, followed by Kalamata in Messinia. The peninsula has been inhabited since prehistoric times and its modern name derives from ancient Greek mythology, specifically the legend of the hero Pelops, who was said to have conquered the entire region. The name Peloponnesos means Island of Pelops, the Mycenaean civilization, mainland Greeces first major civilization, dominated the Peloponnese in the Bronze Age from its stronghold at Mycenae in the north-east of the peninsula. The Mycenean civilization collapsed suddenly at the end of the 2nd millennium BC, archeological research has found that many of its cities and palaces show signs of destruction. The subsequent period, known as the Greek Dark Ages, is marked by an absence of written records
6.
Greece
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Greece, officially the Hellenic Republic, historically also known as Hellas, is a country in southeastern Europe, with a population of approximately 11 million as of 2015. Athens is the capital and largest city, followed by Thessaloniki. Greece is strategically located at the crossroads of Europe, Asia, situated on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, the Republic of Macedonia and Bulgaria to the north, and Turkey to the northeast. Greece consists of nine regions, Macedonia, Central Greece, the Peloponnese, Thessaly, Epirus, the Aegean Islands, Thrace, Crete. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, the Cretan Sea and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin and the 11th longest coastline in the world at 13,676 km in length, featuring a vast number of islands, eighty percent of Greece is mountainous, with Mount Olympus being the highest peak at 2,918 metres. From the eighth century BC, the Greeks were organised into various independent city-states, known as polis, which spanned the entire Mediterranean region and the Black Sea. Greece was annexed by Rome in the second century BC, becoming a part of the Roman Empire and its successor. The Greek Orthodox Church also shaped modern Greek identity and transmitted Greek traditions to the wider Orthodox World, falling under Ottoman dominion in the mid-15th century, the modern nation state of Greece emerged in 1830 following a war of independence. Greeces rich historical legacy is reflected by its 18 UNESCO World Heritage Sites, among the most in Europe, Greece is a democratic and developed country with an advanced high-income economy, a high quality of life, and a very high standard of living. A founding member of the United Nations, Greece was the member to join the European Communities and has been part of the Eurozone since 2001. Greeces unique cultural heritage, large industry, prominent shipping sector. It is the largest economy in the Balkans, where it is an important regional investor, the names for the nation of Greece and the Greek people differ from the names used in other languages, locations and cultures. The earliest evidence of the presence of human ancestors in the southern Balkans, dated to 270,000 BC, is to be found in the Petralona cave, all three stages of the stone age are represented in Greece, for example in the Franchthi Cave. Neolithic settlements in Greece, dating from the 7th millennium BC, are the oldest in Europe by several centuries and these civilizations possessed writing, the Minoans writing in an undeciphered script known as Linear A, and the Mycenaeans in Linear B, an early form of Greek. The Mycenaeans gradually absorbed the Minoans, but collapsed violently around 1200 BC and this ushered in a period known as the Greek Dark Ages, from which written records are absent. The end of the Dark Ages is traditionally dated to 776 BC, the Iliad and the Odyssey, the foundational texts of Western literature, are believed to have been composed by Homer in the 7th or 8th centuries BC. With the end of the Dark Ages, there emerged various kingdoms and city-states across the Greek peninsula, in 508 BC, Cleisthenes instituted the worlds first democratic system of government in Athens
7.
Sparta (modern)
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Sparta, is a city in Laconia, Greece. It lies at the site of ancient Sparta, the municipality population in 2011 was 35,259, of whom 17,408 lived in the city. Until modern times, the site of ancient Sparta was occupied by a town of a few people who lived among the ruins, in the shadow of Mystras. The Palaiologos family also lived in Mystras, in 1834, after the Greek War of Independence, King Otto of Greece decreed the town should be expanded into a city. In the center of the city is the Archaeological Museum and in the North West end is the Tomb of Leonidas, also known as Leonidaion, the citys cathedral is at the southwest end. North of the city start the ruins of the ancient Sparta. Exiting the Acropolis by the North Gate there are the remains of the earliest ancient walls, the Heroon, the Museum of the Olive and Greek Olive Oil in the South West end highlights the culture of the olive and the technology of olive production. The city has built upon the site of ancient Sparta. To the southwest stands Mt. Taygetos, to the east of the city stands the Parnonas mountain range, which is forested predominantly with Greek fir trees and other pines. Modern Spartas origins date back to October 20,1834, when King Otto issued a decree on the construction of the new city, bavarian city planners, headed by Fr. Stauffert, designed a city of 100,000 inhabitants based on the architectural model. Today Sparta maintains its good design, boasting large squares and wide streets lined with trees, the city of Sparta is the economic, administrative and cultural center of Lakonia. A key factor in the advancement of the development is the operation of two departments of the University of Peloponnese and a department of the Technological Educational Institute. The centrally located main square is dominated by the most imposing building in Sparta. Built in 1909, City Hall bears the signature of the Greek architect, during the monarchy, the title of Duke of Sparta was used for the Greek crown prince, the διάδοχος. The city of Sparta enjoys a sunny and warm Mediterranean climate, winters are mild and cool, while summers tend to be particularly hot. January mean maximum temperatures are around 14 °C or 15 °C while July, Sparta is the most conservative city in Greece. It has never had a mayor and it was one of the few cities that voted in 1974 to retain the monarchy
8.
Eurotas (river)
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The Eurotas or Evrotas is the main river of Laconia and one of the major rivers of the Peloponnese, in Greece. The rivers springs are located just northwest of the border between Laconia and Arcadia, at Skortsinos. The river is fed by underwater springs at Pellana and by tributaries coursing down from Mt. Taygetos and Mt. Parnon. The river is 82 kilometres long, flowing in a north-south direction, the classical Eurotas was changed to Iri in the Middle Ages and only changed back to Eurotas in recent times. Eurotas, however, is not the most ancient name of the river and it does not appear in the works of Homer, which purport to recount the stories and geography of Mycenaean Greece. In that legendary time, the Dorians are not known to have present in the Eurotas Valley. At some time prior to being called Eurotas, the river was the Bomycas, one etymology derives the word Eurōtas from the ancient Greek eurōs, mold. The adjective, eurōeis, moldy, is ancient, used as an epithet of Hades in Homer. It is, however in the Ionic dialect, the source of the Eurotas River is a surface spring called Piges Evrota located near the village of Skortsinos, Arcadia, by the side of the road ascending from Kyparissi. The spring is an outlet of an aquifer located in the adjacent limestone ridge at a locale called Kephalari. The ridge, a karst, is not part of the Taygetus Massif, the spring is also called Logaras Spring. Logaras Spring supplies an anciently constructed catchment basin about the size of a pond, sometimes called a lake, the flow is copious except in times of drought. A recent study measured the outflow through the catchment exit every 15 days for 540 days in 2006-2007 and it recorded a maximum of 1748 cubic m per hour and a minimum of 310.5 cubic m per hour. From the catchment at an altitude of 430 m part of the flows into the Alpheios stream. The Laconian Alpheios stream is unconnected with the Alpheios river in Arcadia and he believed they had the same source but that the outflow stream disappeared into a chasm only to emerge at different locations as different streams. In the most exaggerated form of the myth, the Alpheios continues under the Mediterranean to Sicily or elsewhere, today, the river is hydromorphologically far from its natural state. The main problem is anthropogenic abstraction of water, by many methods, the valley contains about 7000 wells. Water is directly removed by irrigation ditches, weirs, and pumping stations, consequently, the river is intermittent, large sections are typically dry of surface water, even though water still flows in the aquifers
9.
Greek language
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Greek is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean. It has the longest documented history of any living language, spanning 34 centuries of written records and its writing system has been the Greek alphabet for the major part of its history, other systems, such as Linear B and the Cypriot syllabary, were used previously. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic and many other writing systems. Together with the Latin texts and traditions of the Roman world, during antiquity, Greek was a widely spoken lingua franca in the Mediterranean world and many places beyond. It would eventually become the official parlance of the Byzantine Empire, the language is spoken by at least 13.2 million people today in Greece, Cyprus, Italy, Albania, Turkey, and the Greek diaspora. Greek roots are used to coin new words for other languages, Greek. Greek has been spoken in the Balkan peninsula since around the 3rd millennium BC, the earliest written evidence is a Linear B clay tablet found in Messenia that dates to between 1450 and 1350 BC, making Greek the worlds oldest recorded living language. Among the Indo-European languages, its date of earliest written attestation is matched only by the now extinct Anatolian languages, the Greek language is conventionally divided into the following periods, Proto-Greek, the unrecorded but assumed last ancestor of all known varieties of Greek. The unity of Proto-Greek would have ended as Hellenic migrants entered the Greek peninsula sometime in the Neolithic era or the Bronze Age, Mycenaean Greek, the language of the Mycenaean civilisation. It is recorded in the Linear B script on tablets dating from the 15th century BC onwards, Ancient Greek, in its various dialects, the language of the Archaic and Classical periods of the ancient Greek civilisation. It was widely known throughout the Roman Empire, after the Roman conquest of Greece, an unofficial bilingualism of Greek and Latin was established in the city of Rome and Koine Greek became a first or second language in the Roman Empire. The origin of Christianity can also be traced through Koine Greek, Medieval Greek, also known as Byzantine Greek, the continuation of Koine Greek in Byzantine Greece, up to the demise of the Byzantine Empire in the 15th century. Much of the written Greek that was used as the language of the Byzantine Empire was an eclectic middle-ground variety based on the tradition of written Koine. Modern Greek, Stemming from Medieval Greek, Modern Greek usages can be traced in the Byzantine period and it is the language used by the modern Greeks, and, apart from Standard Modern Greek, there are several dialects of it. In the modern era, the Greek language entered a state of diglossia, the historical unity and continuing identity between the various stages of the Greek language is often emphasised. Greek speakers today still tend to regard literary works of ancient Greek as part of their own rather than a foreign language and it is also often stated that the historical changes have been relatively slight compared with some other languages. According to one estimation, Homeric Greek is probably closer to demotic than 12-century Middle English is to modern spoken English, Greek is spoken by about 13 million people, mainly in Greece, Albania and Cyprus, but also worldwide by the large Greek diaspora. Greek is the language of Greece, where it is spoken by almost the entire population
