05/22/1972
Sri Lanka – Republic Day – Also known as National Heroes` Day.

05/22/1990
Yemen – North and South Yemen Reunited – day declared “Yemeni National Day.”

05/23/1951
China (People`s Republic of) – Tibet was “peacefully liberated” when representatives of the Dalai Lama signed an agreement with the Beijing government accepting Chinese rule in return for a promise of greater autonomy.

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