Editing January 1 (section)

=== 1801&ndash;1900 ===
* [[1801]] &ndash; The [[Act of Union 1800]] begins to have effect and the [[United Kingdom of Great Britain]] and the [[Kingdom of Ireland]] join to make the [[United Kingdom of Great Britain and Ireland]].
* [[1801]] &ndash; [[Giuseppe Piazzi]] discovers the [[dwarf planet]] [[Ceres]] in the [[Solar System]]'s [[asteroid belt]].
* [[1804]] &ndash; [[France]] stops ruling [[Haiti]]. Haiti becomes independent.
* [[1808]] &ndash; The [[United States]] makes a law making it illegal to bring [[slave]]s from other countries.
* [[1810]] &ndash; [[Lachlan Macquarie]] becomes [[Governor of New South Wales]].
* [[1833]] &ndash; The [[United Kingdom]] claims the [[Falkland Islands]].
* [[1845]] &ndash; The [[Philippines]] adopt the [[Gregorian calendar]], with the [[International Date Line]] being shifted to its [[east]]. [[December 31]], [[1844]] is skipped.
* [[1860]] &ndash; [[Flood]]s in [[Araluen, New South Wales|Araluen]] and [[Braidwood, New South Wales]] kill 24 people.
* [[1860]] &ndash; The first [[Poland|Polish]] [[postage stamp]] is issued.
* [[1863]] &ndash; [[Abraham Lincoln]] signs the [[Emancipation Proclamation]] during the second year of the [[American Civil War]].
* [[1873]] &ndash; [[Japan]] starts using the [[Gregorian calendar]].
* [[1874]] &ndash; [[The Bronx]] becomes part of [[New York City]].
* [[1877]] &ndash; [[Queen Victoria]] is given the title of [[Empress of India]].
* [[1880]] &ndash; Workers start building the [[Panama Canal]].
* [[1885]] &ndash; Twenty-five countries adopt [[Sandford Fleming]]'s proposal for [[Standard time]] ([[time zone]]s).
* [[1890]] &ndash; In [[East Africa]], the [[Italian Eritrea|Italian Colony of Eritrea]] is founded.
* [[1892]] &ndash; [[Ellis Island]] starts to take people moving to live in the [[United States]].
* [[1894]] &ndash; In [[England]], the [[Manchester Ship Canal]] is officially opened.
* [[1897]] &ndash; [[Brooklyn]] joins with [[New York City]].
* [[1898]] &ndash; [[New York City]] and places around it join to make the [[City of Greater New York]].
* [[1899]] &ndash; [[Spain|Spanish]] rule in [[Cuba]] ends.
* [[1899]] &ndash; [[Queens]] and [[Staten Island]] join with [[New York City]].