1801

Centuries:	18th century 19th century 20th century
Decades:	1780s 1790s 1800s 1810s 1820s
Years:	1798 1799 1800 1801 1802 1803 1804
Categories:	Births - Deaths Establishments - Publications
Media:	1801 (Events)

1801 was a common year of the Gregorian calendar and a common year of the Julian calendar, the 1801st year of the Common Era (CE), the 1st year of the 19th century, and the 2nd year of the 1800s decade. As of the start of 1801, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.