Events That Happened on September 20
- 2017 CETreaty on the Prohibition of Nuclear Weapons
- 2008 CEIslamabad Marriott Hotel bombing
- 2012 CECommonwealth of Independent States Free Trade Area
- 2021 CEPerm State University shooting
- 2024 CE20 September 2024 Beirut attack
- 1979 CETreaty of Tarawa
- 1984 CE1984 US embassy bombing in Beirut
- 1993 CE1993 Hădăreni riots
- 2015 CESeptember 2015 Borno State bombings
- 2023 CE2023 Nagorno-Karabakh ceasefire agreement
- 1875 CETreaty 5
- 1939 CEMajdan Wielki massacre
- 1980 CE1980 Markina attack
- 1984 CE1984 Sohmor massacre
- 1985 CEEscalante massacre
- 1986 CE1986 Ufa Tu-134 hijacking
- 2011 CE2011 Ankara bombing
- 1828 CETreaty of St. Joseph
- 1978 CEEl Salvador-France Bilateral Investment Treaty
- 1990 CEBolivia-Sweden Bilateral Investment Treaty
- 1991 CESri Lanka-United States Bilateral Investment Treaty
- 1994 CESouth Africa-United Kingdom Bilateral Investment Treaty
- 1994 CEArmenia-Romania Bilateral Investment Treaty
- 1995 CEIndia-Turkmenistan Bilateral Investment Treaty
- 1997 CECentral African Republic-Jordan Bilateral Investment Treaty
- 1999 CEArgentina-Philippines Bilateral Investment Treaty
- 2015 CEMauritius-United Arab Emirates Bilateral Investment Treaty
Natural Disasters on September 20
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 2020 CEFlood: Uganda (2020-09-20)· 12,000 deaths
- 1498 CEEarthquake and tsunami — Japan, Enshunada Sea (Ms 8.3)· 5,000 deaths
- 1999 CEEarthquake — Taiwan, Nantou, Taichung, Taizhong (Mw 7.6)· 2,297 deaths
- 1899 CEEarthquake — Turkey, Sultanhisar, Atca, Nazilli, Kuyucak, Denizli (Ms 6.7)· 1,117 deaths
- 1933 CEEarthquake — China, Sichuan Province (Ms 5)· 200 deaths
- 1988 CEFlood: Nepal (1988-09-20)· 106 deaths
- 2002 CEFlood: Viet Nam (2002-09-20)· 76 deaths
- 1996 CEFlood: China (1996-09-20)· 38 deaths
- 1997 CEFlood: Viet Nam (1997-09-20)· 28 deaths
- 2016 CEFlood: Indonesia (2016-09-20)· 26 deaths
- 1960 CEFluvial (Riverine) Flooding: Italy (1960-09-20)· 19 deaths
- 2003 CEFlood: Nepal (2003-09-20)· 18 deaths
- 2003 CEFlood: China (2003-09-20)· 13 deaths
- 1858 CEEarthquake — Albania, Delvinon, Berati, Greece: Corfu· 12 deaths
- 1971 CEFluvial (Riverine) Flooding: Spain (1971-09-20)· 11 deaths
- 1988 CEFlood: China (1988-09-20)· 9 deaths
- 2000 CEFlood: Colombia (2000-09-20)· 9 deaths
- 1980 CEFlash Flooding: France (1980-09-20)· 8 deaths
- 2010 CEFlood: Jamaica (2010-09-20)· 5 deaths
- 1968 CEEarthquake and tsunami — Venezuela, Carupano (Mw 6.5)· 3 deaths
- 1995 CEFluvial (Riverine) Flooding: Albania (1995-09-20)· 3 deaths
- 2010 CEFlood: Thailand (2010-09-20)· 2 deaths
- 1973 CEFluvial (Riverine) Flooding: United Kingdom (1973-09-20)· 1 deaths