1778 followed by 1779
1778 (MDCCLXXVIII) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1778th year of the Common Era (CE) and Anno Domini (AD) designations, the 778th  year of the 2nd millennium, the 78th  year of the 18th century, and the  9th   year of the 1770s decade. As of the start of 1778, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.