1786 followed by 1787
1786 (MDCCLXXXVI) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1786th year of the Common Era (CE) and Anno Domini (AD) designations, the 786th  year of the 2nd millennium, the 86th  year of the 18th century, and the  7th   year of the 1780s decade. As of the start of 1786, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.