1800s may refer to:
* The century from 1800 to 1899, almost synonymous with the
19th century
The 19th (nineteenth) century began on 1 January 1801 ( MDCCCI), and ended on 31 December 1900 ( MCM). The 19th century was the ninth century of the 2nd millennium.
The 19th century was characterized by vast social upheaval. Slavery was abolis ...
(1801–1900)
*
1800s (decade)
File:1800s collage.jpg, 420x420px, From top left, clockwise: Napoleon Bonaparte is crowned Emperor of the French Empire and embarked on trans-European conquests, which would later on be best known as the Napoleonic Wars – a conflict that forever ...
, the period from 1800 to 1809
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