1800

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1800 (MDCCC) was an exceptional common year starting on Wednesday of the Gregorian calendar and a leap year starting on Sunday of the Julian calendar, the 1800th year of the Common Era (CE) and Anno Domini (AD) designations, the 800th year of the 2nd millennium, the 100th and last year of the 18th century, and the 1st year of the 1800s decade. As of the start of 1800, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

As of March 1 (O.S. February 18), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 12 days until February 28 (O.S. February 16), 1900.

Millennium: 2nd millennium
Centuries: 17th century18th century19th century
Decades: 1770s  1780s  1790s  – 1800s –  1810s  1820s  1830s
Years: 1797 1798 179918001801 1802 1803

Events[change | change source]

Births

for more information, see Category:1800 births.

Deaths

for more information, see Category:1800 deaths.