1142

1142 (MCXLII) was a common year starting on Thursday of the Julian calendar, the 1142nd year of the Common Era (CE) and Anno Domini (AD) designations, the 142nd year of the 2nd millennium, the 42nd year of the 12th century, and the 3rd year of the 1140s decade. As of the start of 1142, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium:	2nd millennium
Centuries:	11th century – 12th century – 13th century
Decades:	1110s  1120s  1130s  – 1140s –  1150s  1160s  1170s
Years:	1139 1140 1141 – 1142 – 1143 1144 1145

Africa

• When it was unable to feed its population during a famine, the emir of the great commercial center of Mahdia has to recognize the de facto protectorate of Roger II of Sicily.
• Failed Norman raid against the city of Tripoli.

Asia

• Emperor Konoe succeeds Emperor Sutoku on the throne of Japan.

Europe

• Henry the Lion becomes Duke of Saxony.
• The Empress Maud grants Oakley, Buckinghamshire Church, with its chapels of Brill, Boarstall and Addingrove, to the monks of St. Frideswide's Priory, in Oxford.

Births

• Farid od-Din Mohammad ebn Ebrahim 'Attar, Persian mystical poet (d. 1220)
• Hugh III, Duke of Burgundy (d. 1192)

Deaths

• January 27 – Yue Fei, Chinese military leader (b. 1103)
• April 21 – Pierre Abélard, French scholastic philosopher (b. 1079)
• Orderic Vitalis, English chronicler (b. 1075)

1142 Media

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  Duke Henry the Lion (c. 1129–1195)