The First Opium War (Anglo-Sino War) ends: Chinese and British emissaries sign the Treaty of Nanking, ceding the island of Hong Kong to the United Kingdom forever, granting special concessions to the British, by opening six ports to British trade, and paying over one thousand metric tons of silver in compensation for British opium that had been destroyed Chinese customs agents.

       [updated 9/7/2026] Thanks to Jim Lorenz for this entry.

       Great Britain gave it back in 1997, so even “forever” has limits in human diplomacy. –– JL

Subsequent Events:

4/4/1854                    2/29/1856                    10/8/1856

References:

A Short History of the Opium Wars
www.calyx.net/~schaffer/heroin/opiwar1.html

The Anglo-Chinese Treaty of Nanking (1842)
web.jjay.cuny.edu/~jobrien/reference/ob24.html

First Opium War – Wikipedia
en.wikipedia.org/wiki/First_Opium_War

Treaty of Nanking – Wikipedia
en.wikipedia.org/wiki/Treaty_of_Nanking

Current U.s. National Debt:

$40,102,964,278,586

Source