January 1, 1857
Mountain Meadows massacre — 1857 massacre of California-bound emigrants by Mormon militiamen
1857–58 uprising against British Company rule
1857 gang riot in New York City
Maritime treaty regarding Danish straits
1857 major battle of the Anglo-Persian War
Battle of Second Opium War (25–27 May 1857)
Battle during Indian Rebellion of 1857
New York City Police Riot
1857 Indian War skirmish