1649 followed by 1650
1649 (MDCXLIX) was a common year starting on Friday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1649th year of the Common Era (CE) and Anno Domini (AD) designations, the 649th  year of the 2nd millennium, the 49th  year of the 17th century, and the  10th  and last year of the 1640s decade. As of the start of 1649, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.