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A draft Byzantine–Venetian treaty is concluded between Venetian envoys and Emperor Michael VIII Palaiologos, but is not ratified by Doge Reniero Zeno.
United States President John F. Kennedy sends 18,000 military advisors to South Vietnam.
The Sino-British Joint Declaration, stating that China would resume the exercise of sovereignty over Hong Kong and the United Kingdom would restore Hong Kong to China with effect from July 1, 1997, is signed in Beijing by Deng Xiaoping and Margaret Thatcher.
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