And he is remembered as perhaps the most important observational astronomer of the 15th century.Ĭopernicus publishes his heliocentric theory of the Universe. By then, his observatory had enjoyed three decades of existence. He was murdered in 1449 by an assassin hired by his son 'Abd al Latif. ![]() Ulugh Beg succeeded to the trhone of the province of Transoxiana in 1447 upon the death of his father. Ulugh Beg's observatory produced astronomical tables that included a catalogue of over 1,000 stars. The observatory was a 3-story building, but also contained instruments that were outdoors. Ulugh Beg (1394-1449), noted astronomer, had an observatory built at Samarkand in central Asia. The observatory included an extensive library and many instruments set up in the open air. The observatory, built upon a flattened hill, was named Maragha observatory. The patron of the observatory was Mongol ruler, Hulagu, who was addicted to astrology. and the personnel were forced to flee for their lives.Īn observatory was built for the famous Persian astronomer, Nasir al-Din al-Tusi. The observatory was then destroyed in 1125 A.D. Unfortunately, the patron of the observatory was found guilty of several crimes including communication with Saturn, and was sentenced to death. This is possibly the first observatory built in Medieval Islam. He died in 632 A.D.Īl Mamon founds the Baghdad school of astronomy.Ĭhinese astronomers observe supernova in Taurus.Ĭonstruction of an observatory in Cairo was begun in 1120 A.D. Muhammad, founder of the Islamic religion, was born in 570 A.D. Ptolemy suggests geocentric theory of the universe in famous work Mathematike Syntaxis. Introduction of the Julian calendar, a purely solar calendar, to the Roman Empire. Hipparchus develops the first acccurate star map and star catalogue with over 850 of the brightest stars. He provides first estimation of Earth-Sun distance.Įratosthenes measures the circumference of the earth with surprising accuracy! The Vestini tribe put the stones of Fossa in place.Īristarchus suggests the Earth revolves around the Sun. The cairns, Balnuaran of Clava, were built.Įarliest records of Greek, the earliest records of any European language The main stones of Stonehenge are put into place. The megalithic structures of Carnac were built. Those who crossed over on Bering Strait into North America had traveled as far south as Argentina by this point.Įnd of land bridge between Britain and continental Europe. Sometime between 13 and 20 billion years agoĪsian hunter-gatherers had crossed over the frozen Bering Strait to become first humans in North America. History of the Universe in 60 Seconds or Less - Dr. If you would like to see an event added to this list, please submit your suggestion to our comments system. Some events which are not specifically astronomical in nature are listed to give historical perspective as to what was happening in those times. ![]() This is a timeline of important events in astronomical history.
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