1776 followed by 1777
1776 (MDCCLXXVI) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1776th year of the Common Era (CE) and Anno Domini (AD) designations, the 776th  year of the 2nd millennium, the 76th  year of the 18th century, and the  7th   year of the 1770s decade. As of the start of 1776, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.