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743 Caspian Gates Earthquake
The 743 Caspian Gates earthquake reportedly took place in the year 743 or 744 in the Caspian Gates ( Gates of Alexander). The location is identified with either Derbent, Russia or Talis, Iran. Guidoboni, Traina, 1995, p. 120-121 The earthquake is recorded in sources from the Byzantine Empire. The chronicler Theophanes the Confessor (8th century) dates the earthquake in the year 6235 of the Byzantine calendar, in the third regnal year of Constantine V (reigned 741–775). This translates to year 743 or 744 of the Anno Domini system. Guidoboni, Traina, 1995, p. 120-121 According to Theophanes' narrative, a sign appeared in the north at the time of the earthquake, and dust fell in various places. This narrative is repeated by George Kedrenos (12th century), who used Theophanes as his source. Guidoboni, Traina, 1995, p. 120-121 According to a 1982 seismic catalogue by Ambraseys and Melville, this earthquake occurred to the east of Ray, Iran, in the valley of Tang-e Sar-e Darr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gates Of Alexander
The Gates of Alexander were a legendary barrier supposedly built by Alexander the Great in the Caucasus to keep the uncivilized barbarians of the north (typically associated with Gog and Magog in medieval Christian and Islamic writings) from invading the land to the south. The gates were a popular subject in medieval travel literature, starting with the '' Alexander Romance'' in a version from perhaps the 7th century AD. The wall, also known as the Caspian Gates, has been identified with two locations: the Pass of Derbent, Russia, or with the Pass of Dariel, a gorge forming a pass between Russia and Georgia with the Caspian Sea to the east. Tradition also connects it to the Great Wall of Gorgan (Red Snake) on its south-eastern shore. These fortifications were historically part of the defence lines built by the Sassanid Persians, while the Great Wall of Gorgan may have been built by the Parthians. A similar narration about such a wall is mentioned in ''al-Kahf'' ("''The Cave''" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Derbent
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gog And Magog
Gog and Magog (; he, גּוֹג וּמָגוֹג, ''Gōg ū-Māgōg'') appear in the Hebrew Bible and the Quran as individuals, tribes, or lands. In Ezekiel 38, Gog is an individual and Magog is his land; in Genesis 10, Magog is a man and eponymous ancestor of a nation, but no Gog is mentioned; by the time of Jewish tradition had long since changed Ezekiel's "Gog ''from'' Magog" into "Gog ''and'' Magog". The Gog prophecy is meant to be fulfilled at the approach of what is called the "Eschatology, end of days", but not necessarily the end of the world. Jewish eschatology viewed Gog and Magog as enemies to be defeated by the Messiah in Judaism, Messiah, which would usher in the age of the Messiah. Christianity's interpretation is more starkly Apocalypse, apocalyptic, making Gog and Magog, here indicating nations rather than individuals, allies of Satan against God at the end of the Millennialism, millennium, as described in the Book of Revelation. A legend was attached to Gog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th Century In Iran
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed division algebra. * the first number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8th-century Earthquakes
The 8th century is the period from 701 ( DCCI) through 800 ( DCCC) in accordance with the Julian Calendar. The coast of North Africa and the Iberian Peninsula quickly came under Islamic Arab domination. The westward expansion of the Umayyad Empire was famously halted at the siege of Constantinople by the Byzantine Empire and the Battle of Tours by the Franks. The tide of Arab conquest came to an end in the middle of the 8th century.Roberts, J., ''History of the World'', Penguin, 1994. In Europe, late in the century, the Vikings, seafaring peoples from Scandinavia, begin raiding the coasts of Europe and the Mediterranean, and go on to found several important kingdoms. In Asia, the Pala Empire is founded in Bengal. The Tang dynasty reaches its pinnacle under Chinese Emperor Xuanzong. The Nara period begins in Japan. Events * Estimated century in which the poem Beowulf is composed. * Classical Maya civilization begins to decline. * The Kombumerri burial grounds are founded. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Sea
The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. The Black Sea is supplied by major rivers, principally the Danube, Dnieper, and Don. Consequently, while six countries have a coastline on the sea, its drainage basin includes parts of 24 countries in Europe. The Black Sea covers (not including the Sea of Azov), has a maximum depth of , and a volume of . Most of its coasts ascend rapidly. These rises are the Pontic Mountains to the south, bar the southwest-facing peninsulas, the Caucasus Mountains to the east, and the Crimean Mountains to the mid-north. In the west, the coast is generally small floodplains below foothills such as the Strandzha; Cape Emine, a dwindling of the east end of the Balkan Mountains; and the Dobruja Plateau considerably farth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Mallet
Robert Mallet (3 June 1810 – 5 November 1881) was an Irish geophysicist, civil engineer, and inventor who distinguished himself in research on earthquakes and is sometimes called the father of seismology. His son, Frederick Richard Mallet was a geologist who worked in India. Early life Mallet was born in Dublin, on 3 June 1810, the son of factory owner John Mallet. He was educated at Trinity College, Dublin, entering it at the age of 16 and graduating in science and mathematics in 1830 at the age of 20. Career Following his graduation, he joined his father's iron foundry business and helped build the firm into one of the most important engineering works in Ireland, supplying ironwork for railway companies, the Fastnet Rock lighthouse, and a swing bridge over the River Shannon at Athlone. He also helped manufacture the characteristic iron railings that surround Trinity College and which bear his family name at the base. Mallet was elected to the Royal Irish Academy in 1832 at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Ernst Adolf Von Hoff
Karl Ernst Adolf von Hoff (1 November 1771 in Gotha – 24 May 1837 in Gotha) was a German natural historian and geologist. After studying law, physics and natural history, in 1791 he was appointed to a diplomatic post by Ernest II, Duke of Saxe-Gotha-Altenburg. From 1832 onwards he was the director of Gotha's royal science and art collections and he also wrote the five-volume ''Geschichte der durch Überlieferung nachgewiesenen natürlichen Veränderungen der Erdoberfläche'' from 1822 to 1841. Career and Contributions to Geology In 1813 Von Hoff became Privy Councilor. From 1817 to 1820, he cooperated with Johann Wolfgang von Goethe in the reorganization of the University of Jena. After the death of the last duke of Saxe-Gotha-Altenburg, Frederick IV, who died without descendants, von Hoff introduced the new inheritance regulations to prevent the scattering of the rich scientific collections and art collections in Gotha at Schloss Friedenstein, which he took over in 1832. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Iran
Northern Iran consists of the southern border of the Caspian Sea and the Alborz mountains. It includes the provinces of Gilan, Mazandaran, and Golestan. (Ancient kingdom of Hyrcania, medieval region of Tabaristan). The major provinces, Gilan and Mazandaran, are covered with dense forests, snow-covered mountains and impressive sea shores. The major cities are Rasht, Gorgan, Sâri, Bâbol, Amol, Qaem Shahr, Gonbad-e Kavus, Anzali, and Lahijan. Northern Iran has numerous villages, particularly Massulé, appreciated by travellers. Northern Iran was a trendy spot during the Pahlavi era, especially among foreign tourists. It was a luxurious place that provided all types of modern recreational facilities as well as tourism infrastructure. Today, it's mostly visited by domestic tourists. Language Iran is a very diverse country. "Dialect wise" there are different sub-languages and dialects of native speakers in the north of Iran as well the rest of the country. From the east ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Asia
Central Asia, also known as Middle Asia, is a subregion, region of Asia that stretches from the Caspian Sea in the west to western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. It includes the former Soviet Union, Soviet republics of the Soviet Union, republics of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan, which are colloquially referred to as the "-stans" as the countries all have names ending with the Persian language, Persian suffix "-stan", meaning "land of". The current geographical location of Central Asia was formerly part of the historic region of Turkestan, Turkistan, also known as Turan. In the pre-Islamic and early Islamic eras ( and earlier) Central Asia was inhabited predominantly by Iranian peoples, populated by Eastern Iranian languages, Eastern Iranian-speaking Bactrians, Sogdians, Khwarezmian language, Chorasmians and the semi-nomadic Scythians and Dahae. After expansion by Turkic peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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