Events That Happened on August 27
- 1928 CEKellogg-Briand pact
- 1991 CEMoldovan Declaration of Independence
- 1828 CE1828 Treaty of Montevideo
- 1908 CEPrinciples of the Constitution
- 2025 CE2025 Annunciation Catholic Church shooting
- 1191 CEMassacre at Ayyadieh
- 1656 CETreaty of Butre
- 1949 CEPeekskill Riots
- 1953 CEConcordat of 1953
- 1979 CEassassination of Louis Mountbatten, 1st Earl Mountbatten of Burma
- 1893 CENight of Sagasta's shots
- 1918 CETreaty of Berlin (August 27, 1918)
- 1942 CESarny Massacre
- 1966 CEDaxing massacre
- 1987 CEAugust 1987 Philippine coup attempt
- 2019 CE2019 Coatzacoalcos Massacre
- 1785 CEElizondo Treaty
- 1965 CEIvory Coast-Sweden Bilateral Investment Treaty
- 1993 CEEcuador-United States Bilateral Investment Treaty
- 1996 CEIndonesia-Uzbekistan Bilateral Investment Treaty
- 1998 CEBelgium-Mexico Bilateral Investment Treaty
- 1999 CEArgentina-New Zealand Bilateral Investment Treaty
- 2001 CEPeople's Republic of China-Nigeria Bilateral Investment Treaty
- 2004 CEDominican Republic-Switzerland Bilateral Investment Treaty
Natural Disasters on August 27
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1883 CEKrakatau· 36,417 deaths
- 1799 CEEarthquake — China, Yunnan Province (Ms 6.5)· 2,000 deaths
- 1847 CETsunami — Sanriku· 335 deaths
- 1886 CEEarthquake and tsunami — Greece, Triphylie (Peleponese), Philiatra (Mw 6.8)· 326 deaths
- 1993 CEFlood: China (1993-08-27)· 242 deaths
- 2001 CEFlood: Nigeria (2001-08-27)· 200 deaths
- 2003 CEFlood: India (2003-08-27)· 67 deaths
- 1942 CEEarthquake — Albania, Peshkopia, Magellare (Ms 6)· 43 deaths
- 1990 CEFlood: Nepal (1990-08-27)· 42 deaths
- 2011 CEFlood: United States of America (2011-08-27)· 20 deaths
- 1991 CEFlood: Mexico (1991-08-27)· 12 deaths
- 2004 CEFlash Flooding: Romania (2004-08-27)· 6 deaths
- 1998 CEEarthquake — China, Southern Xinjiang: Jiashi (Mw 6.4)· 3 deaths
- 2010 CEEarthquake — Iran, Damghan-Torud (Mw 5.7)· 3 deaths
- 2003 CEFlood: Romania (2003-08-27)· 2 deaths
- 2003 CEFlash Flooding: Romania (2003-08-27)· 2 deaths
- 1998 CEFlood: United States of America (1998-08-27)· 2 deaths
- 1993 CEFlood: Japan (1993-08-27)· 2 deaths
- 2006 CETsunami — Yellow Sea· 1 deaths
- 2023 CEFlood: United States of America (2023-08-27)· 0 deaths
- 2003 CEFlood: Russian Federation (2003-08-27)· 0 deaths
- 1990 CEFlood: Ethiopia (1990-08-27)· 0 deaths
- 1988 CEFlood: Colombia (1988-08-27)· 0 deaths