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...

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...

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...

787 785 Sulphur Springs, TX Micropolitan Statistical Area Houston 22,066 1231 Howard 34,860 903 Big Spring, TX Micropolitan Statistical Area Hudspeth 3...

John of Burgundy (Jean de Bourgogne; 1231 – 29 September 1268) was a Count of Charolais and Lord of Bourbon. He was a younger son of Duke Hugh IV of Burgundy...

Eleanor of Portugal (Portuguese: Leonor [liuˈnoɾ]; c. 1211 – 28 August 1231) was a Portuguese infanta, the only daughter of Afonso II of Portugal and Urraca...

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...