1771 followed by 1772
1771 (MDCCLXXI) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1771st year of the Common Era (CE) and Anno Domini (AD) designations, the 771st  year of the 2nd millennium, the 71st  year of the 18th century, and the  2nd   year of the 1770s decade. As of the start of 1771, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.