1783 followed by 1784
1783 (MDCCLXXXIII) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1783rd year of the Common Era (CE) and Anno Domini (AD) designations, the 783rd  year of the 2nd millennium, the 83rd  year of the 18th century, and the  4th   year of the 1780s decade. As of the start of 1783, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.