What historical event led to the signing of the Treaty of Nanjing

Treaty of Nanjing, (August 29, 1842) treaty that ended the first Opium War, the first of the unequal treaties between China and foreign imperialist powers. China paid the British an indemnity, ceded the territory of Hong Kong, and agreed to establish a “fair and reasonable” tariff.

Explanation:

hope this helps if so please brainliest

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it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.

i dont have that book