1877 (MDCCCLXXVII) wis a common year stairtin on Monanday o the Gregorian calendar (dominical letter G), the 1877t year o the Common Era (CE) an Anno Domini (AD) designations, the 877t year o the 2nt millennium, the 77t year o the 19t century, an the 8t year o the 1870s decade atween 1583 an 1929 an wi Julian Value: 1877 is 12 calendar days difference, which continued tae be uised till the complete conversion o the Gregorian calendar wis entirely duin in 1929.