1139 (MCXXXIX)
was a common year starting on Sunday of the Julian calendar, the 1139th year of the Common Era (CE) and Anno Domini (AD) designations, the 139th year of the 2nd millennium, the 39th year of the 12th century, and the 10th and last year of the 1130s decade. As of the start of 1139, the Gregorian calendar was
7 days ahead of the Julian calendar, which was the dominant calendar of the time.
Events