1285 (MCCLXXXV)
was a common year starting on Monday of the Julian calendar, the 1285th year of the Common Era (CE) and Anno Domini (AD) designations, the 285th year of the 2nd millennium, the 85th year of the 13th century, and the 6th year of the 1280s decade. As of the start of 1285, the Gregorian calendar was
7 days ahead of the Julian calendar, which was the dominant calendar of the time.
Events