Editing 1846 (section)

=== January–March ===
* [[January 5]] – The [[United States House of Representatives]] votes to stop sharing the [[Oregon Country]] with the [[United Kingdom of Great Britain and Ireland|United Kingdom]].
* [[January 13]] – The [[Milan–Venice railway]]'s {{convert|3.2|km|mi|abbr=on}} bridge, over the [[Venetian Lagoon]] between [[Mestre]] and [[Venice]] in Italy, opens,<ref>{{cite web|url=http://en.structurae.de/structures/data/index.cfm?id=s0007311|title=Venice Railroad Bridge|work=[[Structurae]]|access-date=2012-02-22}}</ref> the world's longest since [[1151]].
* [[January 23]] – [[Ahmad I ibn Mustafa]], Bey of Tunis, declares the legal abolition of [[slavery in Tunisia]].<ref>{{Cite journal|last=Montana|first=Ismael Musah|year=2024|title=Ahmad Bey's 1846 Istiftāʾ: its Dual Legislative Framework and Religio-Political Context|journal=Law and History Review|volume=42|pages=31–48|language=en|doi=10.1017/S0738248023000573|issn=0738-2480|doi-access=free}}</ref>
* [[February 4]] – Led by [[Brigham Young]], many [[Mormons]] in the U.S. begin their migration west from [[Nauvoo, Illinois]], to the [[Great Salt Lake]] in what becomes [[Utah]].
* [[February 10]] – [[First Anglo-Sikh war]]: [[Battle of Sobraon]] – British forces in India defeat the Sikhs.<ref name=CBH>{{cite book|last1=Palmer|first1=Alan|last2=Palmer |first2=Veronica|year=1992|title=The Chronology of British History|publisher=Century Ltd|location=London|pages=268–269|isbn=0-7126-5616-2}}</ref>
* [[February 18]] – The [[Galician Peasant Uprising of 1846]] begins in Austria.
* [[February 19]] – [[Texas annexation]]: United States president [[James K. Polk]]'s annexation of the [[Republic of Texas]] is finalized by Texas president [[Anson Jones]] in a formal ceremony of transfer of sovereignty. The newly formed [[Texas]] [[state government]] is officially installed in [[Austin, Texas|Austin]].
* [[February 20]]–[[March 3]] – [[Kraków uprising]]: [[Resistance in partitioned Poland (1795–1918)|Polish nationalists]] stage an uprising in the [[Free City of Kraków]]; it is suppressed by forces of the [[Austrian Empire]], supported by peasants.
* [[February 22]] – The [[Liberty Bell]] in Philadelphia is cracked while being rung for George Washington's birthday.
* [[March 9]] – The [[First Anglo-Sikh war]] ends with the signing of the [[Treaty of Lahore]].<ref name="Pocket On This Day">{{cite book|title=Penguin Pocket On This Day|publisher=Penguin Reference Library|isbn=0-14-102715-0|year=2006}}</ref> [[Kashmir]] is ceded to the [[British East India Company]], and the [[Koh-i-Noor]] diamond is surrendered to [[Queen Victoria]].
* [[March 10]] – Prince Osahito, fourth son of deceased [[Emperor Ninkō]] of Japan, becomes [[Emperor Kōmei]].