Wikipedia:Àwọn Ìṣẹ̀lẹ̀ Bíi Ọjọ́ Òní/Ọjọ́ 22 Oṣù Kẹrin
- 1970 – The first Earth Day is celebrated.
- 1992 – In an explosion in Guadalajara, Mexico, 206 people are killed, nearly 500 injured and 15,000 left homeless.
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- 1724 – Immanuel Kant, German philosopher (d. 1804)
- 1870 – Vladimir Lenin (foto), Russian revolutionary (d. 1924)
- 1938 – Gani Fawehinmi, agbejoro ati alakitiyan oselu ara Naijiria (al. 2009)
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- 1908 – Henry Campbell-Bannerman, Prime Minister of the United Kingdom (b. 1836)
- 1950 – Charles Hamilton Houston, American civil rights attorney (b. 1895)
- 1994 – Richard Nixon, 37th President of the United States (b. 1913)