Year 1231 (MCCXXXI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Emperor Frederick II promulgates...

1231 Property is a category of property defined in section 1231 of the U.S. Internal Revenue Code. 1231 property includes depreciable property and real...

1231 Auricula (prov. designation: 1931 TE2) is a carbonaceous background asteroid from the central regions of the asteroid belt, approximately 20 kilometers...

Project 1231 was a hybrid surface combatant and submarine developed in the Soviet Union in the 1960s. It was known as "Dolphin" (Russian: Дельфин) and...

1931 TX1 Riceia October 9, 1931 Heidelberg K. Reinmuth  · 6.2 km MPC · JPL 1231 Auricula 1931 TE2 Auricula October 10, 1931 Heidelberg K. Reinmuth  · 19...

RX J1131-1231 is a distant, supermassive-black-hole-containing quasar located about 6 billion light years from Earth in the constellation Crater. In 2014...

dynasty 1077–1231 Eldiguzids 1135–1225 Atabegs of Yazd 1141–1319 Salghurids 1148–1282 Hazaraspids 1155–1424 Pishkinid dynasty 1155–1231 Khorshidi dynasty...

Decades 1250s BC 1240s BC 1230s BC 1220s BC 1210s BC Years 1239 BC 1238 BC 1237 BC 1236 BC 1235 BC 1234 BC 1233 BC 1232 BC 1231 BC 1230 BC Categories v t e...

A series of campaigns were conducted between 1231 and 1270 by the Mongol Empire against the Goryeo dynasty of Korea. There were seven major campaigns at...

The following is a list of events in poetry that occurred in 1231. This list includes births and deaths. Máeleoin Bódur Ó Maolconaire becomes Ollamh Síl...