March 20 in history: Poisonous gas released by terrorists kills 12 in Tokyo, and more

| Updated: Mar 20, 2021, 08:20 AM IST

Here's what happened today in history

1815

Napoleon enters Paris after escape from Elba, begins 100-day rule

Albert Einstein presents his general theory of relativity

Terrorists release poisonous gas in the Tokyo subway, kill 12

Obama becomes first US President to visit Cuba since 1928

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Last male northern white rhino dies in Kenya