Category: Science timelines (Redirected from 1800 BC) (19th century BC - 18th century BC - 17th century BC - other centuries) (3rd millennium BC - 2nd millennium BC - 1st millennium BC) Events 1787 - 1784 BC -- Amorite conquests of Uruk and Isin 1786 BC -- Egypt: End of Twelfth Dynasty, start of Thirteenth Dynasty, start of Fourteenth Dynasty 1766... Babylonia, named for the city of Babylon, was an ancient state in Mesopotamia (in modern Iraq), combining the territories of Sumer and Akkad. ... Centuries: 5th century BC - 4th century BC - 3rd century BC Decades: 400s BC 390s BC 380s BC 370s BC 360s BC - 350s BC - 340s BC 330s BC 320s BC 310s BC 300s BC 355 BC 354 BC 353 BC 352 BC 351 BC - 350 BC - 349 BC 348 BC 347... Centuries: 4th century BC - 3rd century BC - 2nd century BC Decades: 350s BC 340s BC 330s BC 320s BC 310s BC - 300s BC - 290s BC 280s BC 270s BC 260s BC 250s BC Years: 305 BC 304 BC 303 BC 302 BC 301 BC - 300 BC - 299 BC 298 BC... Timocharis of Alexandria (circa 320 BC - 260 BC) was a Greek astronomer and philosopher. ... Centuries: 3rd century BC - 2nd century BC - 1st century BC Decades: 180s BC 170s BC 160s BC 150s BC 140s BC - 130s BC - 120s BC 110s BC 100s BC 90s BC 80s BC Years: 139 BC 138 BC 137 BC 136 BC 135 BC - 134 BC - 133 BC 132 BC... Hipparchus (Greek Ἳππαρχος) (ca. ... Star Maps were ancient semi-sentient devices created during the reign of the Rakatan Infinite Empire. ... Events Pope Pius I succeeded Pope Hyginus. ... Claudius Ptolemaeus, given contemporary German styling, in a 16th century engraved book frontispiece. ... Almagest is the Latin form of the Arabic name (al-kitabu-l-mijisti, i. ... Geometry (Greek γεωμετρία; geo = earth, metria = measure) arose as the field of knowledge dealing with spatial relationships. ... Cosmology, from the Greek: κοσμολογία (cosmologia, κόσμος (cosmos) world + λογια (logia) discourse) is the study of the universe in its totality and by extension mans place in it. ... Events After the death of Louis the Pious, his sons Lothar, Charles the Bald and Louis the German fight over the division of the empire, with Lothair succeding as Emperor. ... Abul-Abbas Ahmad ibn Muhammad ibn Kathir al-Farghani known as Alfraganus in the West, was a Persian astronomer and one of the famous astronomers in ninth century. ... Events Holy Roman Emperor Otto I defeats Mieszko I of Poland, compels him to pay tribute Luxembourg is founded, and the Belgium area becomes part of the United Provinces of the Netherlands. ... Al Sufi from The Depiction of Celestial Constellations Abd Al-Rahman Al Sufi (December 7, 903 – May 25, 986) was a Persian astronomer also known as Abd ar-Rahman as-Sufi, or Abd al-Rahman Abu al-Husain, and known in the west as Azophi. ... Abd Al-Rahman Al Sufi published his famous Book of Fixed Stars around 964, in Arabic, although the author himself was probably Persian. ... For broader historical context, see 1250s and 13th century. ... For broader historical context, see 1270s and 13th century. ... Events End of reign of Hungary by Capet-Anjou family. ... Cheonsang Yeolcha Bunyajido is a 14th century Korean star map, copies of which were spread nationwide in the Joseon Dynasty. ... Taejo, meaning great ancestor, is a name often applied to the founders of Korean dynasties. ... Events foundation of All Souls College, University of Oxford. ... Ulugh Beg, here depicted on a Soviet stamp, was one of Islams greatest astronomers during the Middle Ages. ... (15th century - 16th century - 17th century - more centuries) As a means of recording the passage of time, the 16th century was that century which lasted from 1501 to 1600. ... Tycho Brahe Tycho Brahe, born Tyge Ottesen Brahe (December 14, 1546 – October 24, 1601), was a Danish nobleman astronomer as well as an astrologer and alchemist. ... Almagest is the Latin form of the Arabic name (al-kitabu-l-mijisti, i. ... King James I of England/VII of Scotland, the first monarch to rule the Kingdoms of England and Scotland at the same time Events March - Samuel de Champlain, French explorer, sails to Canada March 24 - Elizabeth I of England dies and is succeeded by her cousin King James I of... Johann Bayer (1572 – March 7, 1625) was a German astronomer. ... Uranometrias engraving of the constellation Orion, courtesy of the US Naval Observatory Library Uranometria is the short title of a star atlas produced by Johann Bayer. ... Events August 10 - Treaty of Nijmegen ends the Dutch War. ... Edmond Halley. ... Events George Friderich Handel becomes a British subject. ... John Flamsteed - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... 1771 was a common year starting on Tuesday (see link for calendar). ... Charles Messier Charles Messier (June 26, 1730 – April 12, 1817) was a French astronomer who in 1774 published a catalogue of 45 deep sky objects such as nebulae and star clusters. ... The Triangulum Emission Nebula NGC 604 lies in a spiral arm of Galaxy M33, 2. ... 1862 was a common year starting on Wednesday (see link for calendar). ... Friedrich Wilhelm August Argelander (March 22, 1799 – February 17, 1875) was a Prussian astronomer, born in Memel in the Kingdom of Prussia (now Klaipeda in Lithuania), and best known for his work in recording the positions of stars. ... In astronomy, many stars are referred to simply by catalogue numbers. ... In astronomy, declination (dec) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. ... 1864 (MDCCCLXIV) was a leap year starting on Friday (see link for calendar) of the Gregorian calendar or a leap year starting on Sunday of the 12-day-slower Julian calendar. ... John Herschel Sir John Frederick William Herschel (7 March 1792 – 11 May 1871) was an English mathematician and astronomer. ... The General Catalogue of Nebulae and Clusters was published in 1864 by John Herschel. ... 1887 (MDCCCLXXXVII) is a common year starting on Saturday (click on link for calendar). ... Carte du Ciel (Map of the Sky) was an international project to map the positions of millions of stars — that is to say, of all stars to the 11th or 12th magnitude. ... 1890 was a common year starting on Wednesday (see link for calendar). ... John Louis Emil Dreyer (February 13, 1852 – September 14, 1926) was a Danish-Irish astronomer. ... The New General Catalogue (NGC) is the most well-known catalogue of deep sky objects in amateur astronomy. ... 1932 (MCMXXXII) is a leap year starting on Friday. ... Harlow Shapley (November 2, 1885 – October 20, 1972) was an American astronomer. ... 1950 (MCML) was a common year starting on Sunday (link will take you to calendar). ... 1957 (MCMLVII) was a common year starting on Tuesday of the Gregorian calendar. ... The National Geographic Society - Palomar Observatory Sky Survey (NGS-POSS) is a major photographic survey of the night sky completed at Palomar Observatory in 1958. ... 2m Schmidt Camera (Alfred-Jensch-Telescope Tautenburg, Thuringia, Germany A Schmidt camera is an astronomical camera designed to provide wide fields of view with limited aberrations. ... Ritchey 24 reflecting telescope A reflecting telescope (reflector) is an optical telescope which uses mirrors to reflect light, rather than lenses to pass light. ... 1962 (MCMLXII) was a common year starting on Monday (link will take you to calendar). ... The Cavendish Astrophysics Group (formerly the Radio Astronomy Group) is based at the Cavendish Laboratory at Cambridge University. ... 3C may refer to the digital radio station of the same name The Third Cambridge Catalog of Radio Sources (3C) is an astronomical catalogue of celestial radio sources as measured at 159-MHz. ... 1965 (MCMLXV) was a common year starting on Friday (link goes to calendar). ... See also: Robert B. Leighton (physicist) Robert Leighton (1611-1684), son of Dr. Alexander Leighton, was a Scottish prelate. ... 1982 (MCMLXXXII) is a common year starting on Friday of the Gregorian calendar. ... The Infrared Astronomical Satellite (IRAS) was a space-based observatory that performed a survey of the entire sky at infrared wavelengths. ... A space observatory is any instrument in outer space which is used for observation of distant planets, galaxies, and other outer space objects. ... Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of microwave radiation. ... This article is about the year. ... Astronomy and cosmology examine the universe to understand the large-scale structure of the cosmos. ... 1991 (MCMXCI) is a common year starting on Tuesday of the Gregorian calendar. ... ROSAT ROSAT (short for Röntgensatellit) was a German X-ray satellite telescope. ... A space observatory is any instrument in outer space which is used for observation of distant planets, galaxies, and other outer space objects. ... ROSAT image of X-ray fluorescence of, and occultation of the X-ray background by, the Moon. ... 1993 (MCMXCIII) was a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ... The Very Large Array (VLA) is a radio astronomy observatory located on the Plains of San Augustin, between the towns of Magdalena and Datil, some fifty miles (80 km) west of Socorro, New Mexico, USA. The VLA stands at , , at an altitude of 6970 ft (2124 m) above sea level. ... 1997 (MCMXCVII) is a common year starting on Wednesday of the Gregorian calendar. ... Observations for the Two Micron All-Sky Survey (2MASS) began in 1997 and were completed in 2001 at two telescopes located one each in the northern and southern hemispheres (Mt. ... 1998 (MCMXCVIII) is a common year starting on Thursday of the Gregorian calendar, and was designated the International Year of the Ocean. ... The Sloan Digital Sky Survey or SDSS is a major redshift survey using a dedicated 2. ... 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... In astronomy, the 2dF Galaxy Redshift Survey (Two-degree-Field Galaxy Redshift Gurvey), or 2dFGRS is a redshift survey conducted by the Anglo-Australian Observatory in the 1990s. ...