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France and Britain formally declared war on China, escalating tensions over trad
1857 Event

March 3

Britain and France Declare War on China

France and Britain formally declared war on China, escalating tensions over trade access and diplomatic recognition into a full military campaign. The conflict forced the Qing dynasty to sign the Treaty of Tientsin, which legalized the opium trade, opened additional treaty ports, and permanently installed Western ambassadors in Beijing.

March 3, 1857

169 years ago

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What Else Happened on March 3

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