Nabonassar (also Nabonasser, Nabu-nasir, Nebo-adon-Assur or Nabo-n-assar) was a king of Assyria, who founded the Chaldean and Babylonian kingdom. He became king in 747 BC, and ruled for 14 years, until 734 BC. The Greek astronomer Claudius Ptolemaeus started an era, i.e. a start point for chronological calculations, on New Year's day in the Egyptian calendar of that year (Wednesday February 26, 747 BC in the proleptic Julian calendar). On this day the Nabonassar era (AN - Anno Nabonassari) began, which was used by Ptolemy and later astronomers, but not by the Babylonians themselves. Assyria in earliest historical times referred to a region on the Upper Tigris river, named for its original capital, the city of Asshur (or Ashshur). ... Chaldea was a nation in the southern portion of Babylonia, Lower Mesopotamia, lying chiefly on the right bank of the Euphrates, but commonly used to refer to the whole of the Mesopotamian plain. ... Babylonia was an ancient state in Iraq), combining the territories of Sumer and Akkad. ... Centuries: 9th century BC - 8th century BC - 7th century BC Decades: 790s BC 780s BC 770s BC 760s BC 750s BC - 740s BC - 730s BC 720s BC 710s BC 700s BC 690s BC Events and Trends February 26 747 BC - Nabonassar becomes king of Assyria 747 BC - Meles becomes king... Centuries: 9th century BC - 8th century BC - 7th century BC Decades: 780s BC 770s BC 760s BC 750s BC 740s BC - 730s BC - 720s BC 710s BC 700s BC 690s BC 680s BC Events and Trends 739 BC - Hiram II becomes king of Tyre 738 BC - King Tiglath-Pileser III... Claudius Ptolemaeus, given contemporary German styling, in a 16th century engraved book frontispiece Claudius Ptolemaeus (Greek: Κλαύδιος Πτολεμαῖος; c. ... ERA is an abbreviation for several different things, including: the Equal Rights Amendment, a proposed, but unratified, Constitutional amendment in United States Earned run average, a baseball statistic Engine Room Artificer Education Reform Act Engineering Research Associates, a pioneering computer firm from the 1950s Academy of European Law Trier Explosive... Chronology is the science of locating events in time. ... The ancient Egyptian civil calendar had a year that was 365 days long, consisting of 12 months of 30 days each, plus 5 extra days at the end of the year. ... Wednesday is the day of the week between Tuesday and Thursday. ... February 26 is the 57th day of the year in the Gregorian Calendar. ... Centuries: 9th century BC - 8th century BC - 7th century BC Decades: 790s BC 780s BC 770s BC 760s BC 750s BC - 740s BC - 730s BC 720s BC 710s BC 700s BC 690s BC Events and Trends February 26 747 BC - Nabonassar becomes king of Assyria 747 BC - Meles becomes king... The proleptic Julian calendar is produced by extending the Julian calendar to dates preceding its official introduction in 45 BC. Historians since Bede have traditionally represented the years preceding AD 1 as 1 BC, 2 BC, etc. ...

The first of a series of tablets collectively called the Babylonian Chronicle record events beginning in the reign of Nabonassar. The Babylonian Chronicle is a series of tablets recording major events in Babylonian history, beginning with the reign of Nabonassar. ...

See also

• Kings of Babylon
• Babylonia