1802 (MDCCCII) wis a common year stairtin on Fryday o the Gregorian calendar (dominical letter C), the 1802nt year o the Common Era (CE) an Anno Domini (AD) designations, the 802nt year o the 2nt millennium, the 2nt year o the 19t century, an the 3rd year o the 1800s decade atween 1583 an 1929 an wi Julian Value: 1802 is 12 calendar days difference, which continued tae be uised till the complete conversion o the Gregorian calendar wis entirely duin in 1929.