1871 followed by 1872
1871 (MDCCCLXXI) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1871st year of the Common Era (CE) and Anno Domini (AD) designations, the 871st  year of the 2nd millennium, the 71st  year of the 19th century, and the  2nd   year of the 1870s decade. As of the start of 1871, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.