Events That Happened on April 21
- 2019 CE2019 Sri Lanka bombings
- 2010 CEKharkiv Pact
- 1802 CEWahhabi sack of Karbala
- 1920 CETreaty of Warsaw
- 753 BCEFoundation of Rome
- 1925 CEManifesto of the Fascist Intellectuals
- 2015 CEGoshince attack
- 2022 CE2022 Mazar-i-Sharif mosque bombing
- 2022 CEKreinik massacre
- 1564 CETreaty of Troyes
- 1855 CELager Beer Riot
- 1941 CEPančevo massacre
- 1987 CECentral Bus Station Bombing
- 1964 CEEthiopia-Germany Bilateral Investment Treaty
- 1987 CEHungary-Sweden Bilateral Investment Treaty
- 1994 CEPeople's Republic of China-Egypt Bilateral Investment Treaty
- 1998 CECape Verde-People's Republic of China Bilateral Investment Treaty
- 1998 CEArgentina-Guatemala Bilateral Investment Treaty
- 1999 CEEl Salvador-Morocco Bilateral Investment Treaty
- 2009 CEPortugal-Qatar Bilateral Investment Treaty
Natural Disasters on April 21
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 2003 CEFlood: Kenya,Uganda (2003-04-21)· 77 deaths
- 1659 CEEarthquake — Japan, Aidu· 39 deaths
- 2006 CEFlood: China (2006-04-21)· 22 deaths
- 1977 CEEarthquake and tsunami — Solomon Islands (Ms 8.1)· 18 deaths
- 1594 CEEarthquake — El Salvador, San Salvador· 13 deaths
- 2011 CEFlood: Brazil (2011-04-21)· 12 deaths
- 2007 CEEarthquake and tsunami — Chile, Southern (Mw 6.2)· 10 deaths
- 1995 CEFlood: Iran (Islamic Republic of) (1995-04-21)· 9 deaths
- 2020 CEFlood: Djibouti (2020-04-21)· 8 deaths
- 1955 CEEarthquake — Greece, Aegean Sea (M 6)· 7 deaths
- 1968 CEMayon· 6 deaths
- 2007 CEFlood: Morocco (2007-04-21)· 4 deaths
- 1918 CEEarthquake — California, San Jacinto, Hemet (Mw 6.7)· 1 deaths
- 2002 CEFlash Flooding: Italy (2002-04-21)· 1 deaths
- 2020 CEFlash Flooding: Spain (2020-04-21)· 1 deaths
- 2003 CEFlood: Afghanistan (2003-04-21)· 0 deaths
- 2023 CEFlood: Brazil (2023-04-21)· 0 deaths
- 2023 CEFlood: Kenya (2023-04-21)· 0 deaths
- 2006 CEFlood: Russian Federation (2006-04-21)· 0 deaths
- 2007 CEFlood: Kenya (2007-04-21)· 0 deaths
- 2021 CEFlood: Colombia (2021-04-21)· 0 deaths
- 1985 CEFlood: China (1985-04-21)· 0 deaths
- 1916 CEEarthquake — Japan, Off East Coast Honshu (M 7.8)