1685 followed by 1686
1685 (MDCLXXXV) was a common year starting on Monday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1685th year of the Common Era (CE) and Anno Domini (AD) designations, the 685th  year of the 2nd millennium, the 85th  year of the 17th century, and the  6th   year of the 1680s decade. As of the start of 1685, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.