05/20/1989
China (- Martial Law in Beijing. The death of Hu Yao Bang on April 15 set off protests, hunger strikes, and the occupation of Tienanmen Square by pro-democracy student radicals, which led to the imposition of martial law in Beijing.

05/20/1927
Saudi Arabia – Independence Day

05/21/1991
India – Prime Mininster Rajiv Gandi Assassinated during a campaign rally in Tamil Nadu State.

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