890 (DCCCXC) was a common year starting on Thursday of the Julian calendar, the 890th year of the Common Era (CE) and Anno Domini (AD) designations, the 890th year of the 1st millennium, the 90th year of the 9th century, and the 1st year of the 890s decade. As of the start of 890, the Gregorian calendar was 4 days ahead of the Julian calendar, which was the dominant calendar of the time.

Events