1876 followed by 1877
1876 (MDCCCLXXVI) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1876th year of the Common Era (CE) and Anno Domini (AD) designations, the 876th  year of the 2nd millennium, the 76th  year of the 19th century, and the  7th   year of the 1870s decade. As of the start of 1876, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.