1.
Arabic
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Arabic is a Central Semitic language that was first spoken in Iron Age northwestern Arabia and is now the lingua franca of the Arab world. Arabic is also the language of 1.7 billion Muslims. It is one of six languages of the United Nations. The modern written language is derived from the language of the Quran and it is widely taught in schools and universities, and is used to varying degrees in workplaces, government, and the media. The two formal varieties are grouped together as Literary Arabic, which is the language of 26 states. Modern Standard Arabic largely follows the standards of Quranic Arabic. Much of the new vocabulary is used to denote concepts that have arisen in the post-Quranic era, Arabic has influenced many languages around the globe throughout its history. During the Middle Ages, Literary Arabic was a vehicle of culture in Europe, especially in science, mathematics. As a result, many European languages have borrowed many words from it. Many words of Arabic origin are found in ancient languages like Latin. Balkan languages, including Greek, have acquired a significant number of Arabic words through contact with Ottoman Turkish. Arabic has also borrowed words from languages including Greek and Persian in medieval times. Arabic is a Central Semitic language, closely related to the Northwest Semitic languages, the Ancient South Arabian languages, the Semitic languages changed a great deal between Proto-Semitic and the establishment of the Central Semitic languages, particularly in grammar. Innovations of the Central Semitic languages—all maintained in Arabic—include, The conversion of the suffix-conjugated stative formation into a past tense, the conversion of the prefix-conjugated preterite-tense formation into a present tense. The elimination of other prefix-conjugated mood/aspect forms in favor of new moods formed by endings attached to the prefix-conjugation forms, the development of an internal passive. These features are evidence of descent from a hypothetical ancestor. In the southwest, various Central Semitic languages both belonging to and outside of the Ancient South Arabian family were spoken and it is also believed that the ancestors of the Modern South Arabian languages were also spoken in southern Arabia at this time. To the north, in the oases of northern Hijaz, Dadanitic and Taymanitic held some prestige as inscriptional languages, in Najd and parts of western Arabia, a language known to scholars as Thamudic C is attested
2.
Seawater
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Seawater, or salt water, is water from a sea or ocean. On average, seawater in the oceans has a salinity of about 3. 5% This means that every kilogram of seawater has approximately 35 grams of dissolved salts. Average density at the surface is 1.025 kg/l, seawater is denser than both fresh water and pure water because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases, at typical salinity, it freezes at about −2 °C. The coldest seawater ever recorded was in 2010, in a stream under an Antarctic glacier, seawater pH is typically limited to a range between 7.5 and 8.4. However, there is no universally accepted reference pH-scale for seawater, although the vast majority of seawater has a salinity of between 31 g/kg and 38 g/kg, seawater is not uniformly saline throughout the world. Where mixing occurs with fresh water runoff from river mouths, near melting glaciers or vast amounts precipitation, the most saline open sea is the Red Sea, where high rates of evaporation, low precipitation and low river run-off, and confined circulation result in unusually salty water. The salinity in isolated bodies of water can be considerably greater still, historically, several salinity scales were used to approximate the absolute salinity of seawater. A popular scale was the Practical Salinity Scale where salinity was measured in practical salinity units, the current standard for salinity is the Reference Salinity scale with the salinity expressed in units of g/kg. The density of surface seawater ranges from about 1020 to 1029 kg/m3, depending on the temperature, at a temperature of 25 °C, salinity of 35 g/kg and 1 atm pressure, the density of seawater is 1023.6 kg/m3. Deep in the ocean, under pressure, seawater can reach a density of 1050 kg/m3 or higher. The density of seawater also changes with salinity, brines generated by seawater desalination plants can have salinities up to 120 g/kg. The density of typical seawater brine of 120 g/kg salinity at 25 °C, seawater pH is limited to the range 7.5 to 8.4. The speed of sound in seawater is about 1,500 m/s, and varies with temperature, salinity. The thermal conductivity of seawater is 0.6 W/mK at 25 °C, the thermal conductivity decreases with increasing salinity and increases with increasing temperature. Seawater contains more dissolved ions than all types of freshwater, however, the ratios of solutes differ dramatically. Bicarbonate ions also constitute 48% of river water solutes but only 0. 14% of all seawater ions, differences like these are due to the varying residence times of seawater solutes, sodium and chlorine have very long residence times, while calcium tends to precipitate much more quickly. The most abundant dissolved ions in seawater are sodium, chloride, magnesium, sulfate and its osmolarity is about 1000 mOsm/l
3.
Creek (tidal)
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A tidal creek, tidal channel, or estuary is the portion of a stream that is affected by ebb and flow of ocean tides, in the case that the subject stream discharges to an ocean, sea or strait. Thus this portion of the stream has variable salinity and electrical conductivity over the tidal cycle, due to the temporal variability of water quality parameters within the tidally influenced zone, there are unique biota associated with tidal creeks, which biota are often specialised to such zones. Creeks may often dry to a channel with little or no flow at low tide. In British English and in other countries in the Commonwealth, as well as some parts of the United States. In parts of southwest England and Wales, the pill is used. On the India and Pakistan borders the term applies to the salt water inlets enclosed by mangroves. Creeks are found dispersed all along the Indian coast, in the Florida Keys, a creek is a narrow channel between islands. There are thousands of examples of tidal creeks throughout the world
4.
Dubai
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Dubai is the largest and most populous city in the United Arab Emirates. It is located on the southeast coast of the Persian Gulf and is the capital of the Emirate of Dubai, Abu Dhabi and Dubai are the only two emirates to have veto power over critical matters of national importance in the countrys legislature. The city of Dubai is located on the northern coastline. Dubai will host World Expo 2020, Dubai has emerged as a global city and business hub of the Middle East. It is also a transport hub for passengers and cargo. By the 1960s, Dubais economy was based on revenues from trade and, to an extent, oil exploration concessions. Oil revenue first started to flow in 1969, Dubais oil revenue helped accelerate the early development of the city, but its reserves are limited and production levels are low, today, less than 5% of the emirates revenue comes from oil. The emirates Western-style model of business drives its economy with the main revenues now coming from tourism, aviation, real estate, Dubai was recently named the best destination for Muslim travellers by Salam Standard. Dubai has recently attracted attention through many innovative large construction projects and sports events. The city has become iconic for its skyscrapers and high-rise buildings, in particular the worlds tallest building, Dubai has been criticised for human rights violations concerning the citys largely South Asian and Filipino workforce. As of 2012, Dubai was the 22nd most expensive city in the world, in 2014, Dubais hotel rooms were rated as the second most expensive in the world, after Geneva. Dubai was rated as one of the best places to live in the Middle East by U. S. global consulting firm Mercer, Many theories have been proposed as to the origin of the word Dubai. One theory suggests the word was used to describe the souq, another theory states that the name came from a word meaning money, as people from Dubai were commonly believed to be rich due to the thriving trading centre of the location. An Arabic proverb says Daba Dubai, meaning They came with a lot of money, according to Fedel Handhal, a scholar on the UAEs history and culture, the word Dubai may have come from the word daba, referring to the slow flow of Dubai Creek inland. The poet and scholar Ahmad Mohammad Obaid traces it to the same word, an inhabitant or native of the city is a Dubaian. Although stone tools have been found at archaeological sites, little is known about the UAEs early inhabitants as only a few settlements have been found. Many ancient towns in the area were trading centres between the Eastern and Western worlds, the remnants of an ancient mangrove swamp, dated at 7000 BC, were discovered during the construction of sewer lines near Dubai Internet City. The area was covered with sand about 5,000 years ago as the coast retreated inland, pre-Islamic ceramics have been found from the 3rd and 4th centuries
5.
United Arab Emirates
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In 2013, the UAEs population was 9.2 million, of which 1.4 million are Emirati citizens and 7.8 million are expatriates. The country is a federation of seven emirates, and was established on 2 December 1971, the constituent emirates are Abu Dhabi, Ajman, Dubai, Fujairah, Ras al-Khaimah, Sharjah and Umm al-Quwain. Each emirate is governed by a monarch, together, they jointly form the Federal Supreme Council. One of the monarchs is selected as the President of the United Arab Emirates, Islam is the official religion of the UAE and Arabic is the official language. The UAEs oil reserves are the seventh-largest in the world while its natural gas reserves are the worlds seventeenth-largest, Sheikh Zayed, ruler of Abu Dhabi and the first President of the UAE, oversaw the development of the Emirates and steered oil revenues into healthcare, education and infrastructure. The UAEs economy is the most diversified in the Gulf Cooperation Council, while its most populous city of Dubai is an important global city, nevertheless, the country remains principally reliant on its export of petroleum and natural gas. The UAE is criticised for its rights record, including the specific interpretations of Sharia used in its legal system. The UAEs rising international profile has led analysts to identify it as a regional. It appears the land of the Emirates has been occupied for thousands of years, there is no proof of contact with the outside world at that stage, although in time it developed with civilisations in Mesopotamia and Iran. This contact persisted and became wide-ranging, probably motivated by trade in copper from the Hajar Mountains, in ancient times, Al Hasa was part of Al Bahreyn and adjoined Greater Oman. Sassanid groups were present on the Batinah coast, in 637, Julfar was an important port that was used as a staging post for the Islamic invasion of the Sassanian Empire. The area of the Al Ain/Buraimi Oasis was known as Tuam and was an important trading post for camel routes between the coast and the Arabian interior. The earliest Christian site in the UAE was first discovered in the 1990s, a monastic complex on what is now known as Sir Bani Yas Island. Thought to be Nestorian and built in 600 AD, the church appears to have been abandoned peacefully in 750 AD and it forms a rare physical link to a legacy of Christianity which is thought to have spread across the peninsula from 50 to 350 AD following trade routes. Certainly, by the 5th century, Oman had a bishop named John – the last bishop of Oman being Etienne, in 676 AD. This led to a group of travelling to Medina, converting to Islam and subsequently driving a successful uprising against the unpopular Sassanids. Following the death of Prophet Muhammad, the new Islamic communities south of the Persian Gulf threatened to disintegrate, with insurrections against the Muslim leaders. The Caliph Abu Bakr sent an army from the capital Medina which completed its reconquest of the territory with the battle of Dibba in which 10,000 lives are thought to have been lost
6.
Ras Al Khor
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Ras Al Khor Wildlife Sanctuary, Dubai, United Arab Emirates, is a wetland reserve renowned for attracting migratory birds in large numbers. The wetlands have large numbers of birds, crustaceans, small mammals, Ras Al Khor Wildlife Sanctuary represents an enclave of relative wilderness amidst swirling traffic and sprawling urban infrastructure. Located just as the name in Arabic suggests - at the Cape of the Creek, the Dubai Municipality has taken great efforts to protect and preserve the biodiversity of this delicate ecosystem. The wetland has been fenced off from the public and three birding hides have been built, the bird hides are a first step towards development of more elaborate visitor education facilities in the protected area. WWF UAE Project Office collaborated with Dubai Municipalitys Environment Department, in setting up the facilities that were sponsored by the National Bank of Dubai. Opportunities for experiencing a natural environment in this rapidly building-up emirate are so limited that the opening of Ras Al Khor to visitors is a boon to present, presently there are three birding hides located on the perimeter of the sanctuary open to the public. Entrance is free and operate from 9,00 am to 4,00 pm Saturday to Thursday, Ras Al Khor is also home to about 500 greater flamingoes, which has become something of a mascot for Dubais Wild Life protection program. Some of the visitors to the sanctuary are, Official website
7.
Persian Gulf
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The Persian Gulf is a mediterranean sea in Western Asia. The body of water is an extension of the Indian Ocean through the Strait of Hormuz, the Shatt al-Arab river delta forms the northwest shoreline. The Persian Gulf was a battlefield of the 1980–1988 Iran–Iraq War and it is the namesake of the 1991 Gulf War, the largely air- and land-based conflict that followed Iraqs invasion of Kuwait. The gulf has many fishing grounds, extensive coral reefs, and abundant pearl oysters, the body of water is historically and internationally known as the Persian Gulf. Some Arab governments refer to it as the Arabian Gulf or The Gulf, the name Gulf of Iran is used by the International Hydrographic Organization. The Persian Gulf is geologically young, having been formed around 15,000 years ago. Its length is 989 kilometres, with Iran covering most of the northern coast, the Persian Gulf is about 56 km wide at its narrowest, in the Strait of Hormuz. The waters are very shallow, with a maximum depth of 90 metres. Various small islands lie within the Persian Gulf, some of which are the subject of territorial disputes between the states of the region. The International Hydrographic Organization defines the Persian Gulfs southern limit as The Northwestern limit of Gulf of Oman and this limit is defined as A line joining Ràs Limah on the coast of Arabia and Ràs al Kuh on the coast of Iran. The Persian Gulf and its areas are the worlds largest single source of crude oil. Safaniya Oil Field, the worlds largest offshore oilfield, is located in the Persian Gulf, large gas finds have also been made, with Qatar and Iran sharing a giant field across the territorial median line. Using this gas, Qatar has built up a substantial liquefied natural gas, the oil-rich countries that have a coastline on the Persian Gulf are referred to as the Persian Gulf States. In 550 BC, the Achaemenid Empire established the first ancient empire in Persis, consequently, in the Greek sources, the body of water that bordered this province came to be known as the Persian Gulf. In the travel account of Pythagoras, several chapters are related to description of his travels accompanied by the Achaemenid king Darius the Great, to Susa and Persepolis, and the area is described. This water channel separates the Iran Plateau from the Arabia Plate, has enjoyed an Iranian Identity since at least 2200 years ago. Before being given its present name, the Persian Gulf was called many different names, the classical Greek writers, like Herodotus, called it the Red Sea. In Babylonian texts, it was known as the sea above Akkad, the name of the gulf, historically and internationally known as the Persian Gulf after the land of Persia, has been disputed by some Arab countries since the 1960s
8.
Al Ain
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Al-Ain, also known as the Garden City due to its greenery, is the largest inland city in the United Arab Emirates, the fourth-largest overall, and the second-largest in the Emirate of Abu Dhabi. With a population of 650,000, it is located approximately 160 kilometres east of the capital Abu Dhabi, Al-Ain is the birthplace of Sheikh Zayed bin Sultan Al Nahyan, the founder of the United Arab Emirates, and has the highest proportion of Emirati nationals. Al-Ain is located in the Emirate of Abu Dhabi, inland on the border with Oman, the freeways connecting Al-Ain, Abu Dhabi, and Dubai form a geographic triangle in the country, each city being roughly 130 kilometres from the other two. Historically a part of Ṫawam or Al Buraimi Oasis, Al-Ain has been inhabited for over 4,000 years, with archaeological sites showing human settlement at Al-Hili and Jabel Ḥafeeṫ. These early cultures built beehive tombs for their dead and engaged in hunting and gathering in the area, the oasis provided water for early farms until the modern age. A companion of the Islamic prophet, Muhammad, Kaab Bin Ahbar, was sent to the region to introduce Islam to the people. He settled and died in the oasis, the forts currently in Al-Ain were built in the late 19th or early 20th century to solidify Abu Dhabis control over the oasis. Wilfred Thesiger visited Al-Ain in the late 1940s during his travels across the Empty Quarter and he met Sheikh Zayed and stayed with him at Al-Muwaiji Fort. This network of fortresses protected the Oases and settlements from bandit attacks, in 1952 Saudi Arabia sent raiders to capture Al-Ains fortresses and incorporate the oasis into the Saudi kingdom. Forces from the Trucial Oman Scouts, as well as the army of Muscat-Oman, with British intervention, the Saudi forces surrendered, leaving the oasis back in the hands of Abu Dhabi and Muscat-Oman. In 1971 Queen Elizabeth II visited the Hilton Hotel in the area, still in use, following independence in 1971, Al-Ain experienced rapid growth and investment as part of the emirate of Abu Dhabi, quickly becoming larger and more successful than Omans Al-Buraimi. In 1972 Oman and Abu Dhabi agreed on the borders to divide Al-Buraimi. Until Sheikh Zayeds death in 2004, Al-Ains municipal code forbade construction of buildings over four storeys, with the exceptions of the Hilton, Danat Al Ain Resort, in the 1990s, a serious uprising occurred among the labourers of the industrial district of Al-Ain, Aṣ-Ṣanaiya. This uprising was suppressed by the UAE army and local police forces, all the labourers involved were interned and deported. Until 2006, Al-Buraimi and Al-Ain shared an open border and this border was closed in November 2006, and passport controls were imposed. Al-Ain is located in the region of Abu Dhabi Emirate just south of Dubai. The Eastern region covers an area of approximately 13,100 km², Oman lies to the east, Dubai and Sharjah to the north, Abu Dhabi to the west and the Empty Quarter desert and Saudi Arabia to the south. The topography of Al-Ain is unique and varies as one travel to the east, Jebel Hafeet is considered one of the monuments of Al-Ain, lying just to the southeast and rising to 1,300 m in elevation
9.
Ancient Greece
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Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 12th-9th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and this was followed by the period of Classical Greece, an era that began with the Greco-Persian Wars, lasting from the 5th to 4th centuries BC. Due to the conquests by Alexander the Great of Macedonia, Hellenistic civilization flourished from Central Asia to the end of the Mediterranean Sea. Classical Greek culture, especially philosophy, had a influence on ancient Rome. For this reason Classical Greece is generally considered to be the culture which provided the foundation of modern Western culture and is considered the cradle of Western civilization. Classical Antiquity in the Mediterranean region is considered to have begun in the 8th century BC. Classical Antiquity in Greece is preceded by the Greek Dark Ages and this period is succeeded, around the 8th century BC, by the Orientalizing Period during which a strong influence of Syro-Hittite, Jewish, Assyrian, Phoenician and Egyptian cultures becomes apparent. The end of the Dark Ages is also dated to 776 BC. The Archaic period gives way to the Classical period around 500 BC, Ancient Periods Astronomical year numbering Dates are approximate, consult particular article for details The history of Greece during Classical Antiquity may be subdivided into five major periods. The earliest of these is the Archaic period, in which artists made larger free-standing sculptures in stiff, the Archaic period is often taken to end with the overthrow of the last tyrant of Athens and the start of Athenian Democracy in 508 BC. It was followed by the Classical period, characterized by a style which was considered by observers to be exemplary, i. e. classical, as shown in the Parthenon. This period saw the Greco-Persian Wars and the Rise of Macedon, following the Classical period was the Hellenistic period, during which Greek culture and power expanded into the Near and Middle East. This period begins with the death of Alexander and ends with the Roman conquest, Herodotus is widely known as the father of history, his Histories are eponymous of the entire field. Herodotus was succeeded by authors such as Thucydides, Xenophon, Demosthenes, Plato, most of these authors were either Athenian or pro-Athenian, which is why far more is known about the history and politics of Athens than those of many other cities. Their scope is limited by a focus on political, military and diplomatic history, ignoring economic. In the 8th century BC, Greece began to emerge from the Dark Ages which followed the fall of the Mycenaean civilization, literacy had been lost and Mycenaean script forgotten, but the Greeks adopted the Phoenician alphabet, modifying it to create the Greek alphabet. The Lelantine War is the earliest documented war of the ancient Greek period and it was fought between the important poleis of Chalcis and Eretria over the fertile Lelantine plain of Euboea. Both cities seem to have suffered a decline as result of the long war, a mercantile class arose in the first half of the 7th century BC, shown by the introduction of coinage in about 680 BC
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