Events That Happened on September 21
- 2013 CEWestgate shopping mall shooting
- 2018 CE2018 Ahvaz military parade attack
- 1309 CETreaty of Soldin (1309)
- 1943 CEMassacre of the Acqui Division
- 2013 CEMurder of Asunta Basterra
- 2021 CESeptember 2021 Sudanese coup d'état attempt
- 1864 CETurin massacre (1864)
- 1919 CESteel strike of 1919
- 1962 CE1963 Argentine Navy Revolt
- 2012 CEProject X Haren
- 1638 CETreaty of Hartford
- 1832 CEBlack Hawk Purchase
- 1908 CEPenal Code of Siam
- 1939 CEAssassination of Armand Călinescu
- 1976 CELetelier assassination
- 1993 CEArgentina-Bulgaria Bilateral Investment Treaty
- 2006 CESouth Korea-Libya Bilateral Investment Treaty
Natural Disasters on September 21
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1988 CEFlood: India (1988-09-21)· 731 deaths
- 1998 CEFlood: Dominican Republic,Haiti (1998-09-21)· 353 deaths
- 1995 CEFlood: Viet Nam (1995-09-21)· 153 deaths
- 1992 CEFlash Flooding: France (1992-09-21)· 49 deaths
- 1929 CEFluvial (Riverine) Flooding: Italy (1929-09-21)· 45 deaths
- 1939 CEEarthquake — Turkey (M 6.5)· 41 deaths
- 1911 CEFlash Flooding: Italy (1911-09-21)· 40 deaths
- 1994 CEFlood: Algeria (1994-09-21)· 32 deaths
- 1995 CEFlood: Togo,Benin (1995-09-21)· 19 deaths
- 2007 CEFlood: Algeria (2007-09-21)· 18 deaths
- 2016 CEFlood: India (2016-09-21)· 17 deaths
- 1931 CEEarthquake — Japan, Honshu (M 7)· 16 deaths
- 1958 CEEarthquake — Iran (Ms 5.2)· 16 deaths
- 1897 CEEarthquake and tsunami — Philippines, Mindanao, Zamboanga, Sulu, Isabela (Ms 8.7)· 13 deaths
- 2009 CEEarthquake — Bhutan, Tashigang (Mw 6.1)· 11 deaths
- 2005 CEFluvial (Riverine) Flooding: Romania (2005-09-21)· 10 deaths
- 2005 CEFlood: Romania,Bulgaria (2005-09-21)· 10 deaths
- 2003 CEFlood: Philippines (2003-09-21)· 9 deaths
- 2009 CEFlood: United States of America (2009-09-21)· 8 deaths
- 2003 CEEarthquake — Myanmar (Burma), Taungdwingyi, Thailand: Bangkok (Mw 6.6)· 7 deaths
- 2014 CEFlood: South Sudan (2014-09-21)· 7 deaths
- 1974 CEFlash Flooding: Italy (1974-09-21)· 4 deaths
- 1995 CEFlood: Albania (1995-09-21)· 4 deaths
- 2008 CEFlood: Puerto Rico (2008-09-21)· 4 deaths