19th century

The 19th century began on 1 January 1801 (represented by the Roman numerals MDCCCI), and ended on 31 December 1900 (MCM). It was the 9th century of the 2nd millennium. It was characterized by vast social upheaval.

Extends: [19th century](https://wikipedia.org.ai/19th century), [2nd millennium](https://wikipedia.org.ai/2nd millennium), Centuries, [Late modern period](https://wikipedia.org.ai/Late modern period), [19th-century overviews](https://wikipedia.org.ai/19th-century overviews)