1742 followed by 1743
1742 (MDCCXLII) was a common year starting on Monday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1742nd year of the Common Era (CE) and Anno Domini (AD) designations, the 742nd  year of the 2nd millennium, the 42nd  year of the 18th century, and the  3rd   year of the 1740s decade. As of the start of 1742, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.