Events That Happened on May 9
- 1898 CEBava-Beccaris Massacre
- 1976 CEMontejurra massacre
- 1980 CEConvention concerning International Carriage by Rail
- 1992 CEGlogova massacre
- 2002 CE2002 Kaspiysk bombing
- 2004 CE2004 Grozny stadium bombing
- 1179 CETreaty of Ribemont
- 1847 CEMeusebach–Comanche Treaty
- 2025 CENancy Treaty
- 1836 CETreaty with the Chippewa, 1836
- 1980 CESingapore-Sri Lanka Bilateral Investment Treaty
- 1995 CEKingdom of the Netherlands-South Africa Bilateral Investment Treaty
- 1996 CEArgentina-El Salvador Bilateral Investment Treaty
- 2001 CEThe Gambia-Mauritania Bilateral Investment Treaty
- 2007 CESwitzerland-Syria Bilateral Investment Treaty
Natural Disasters on May 9
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1830 CEEarthquake — Iran, Damavand, Tehran, Semnan, Damghan· 500 deaths
- 1997 CEFlood: China (1997-05-09)· 111 deaths
- 2018 CEFlood: Afghanistan (2018-05-09)· 72 deaths
- 1772 CEGamalama· 35 deaths
- 1986 CEFlood: Thailand (1986-05-09)· 32 deaths
- 2023 CEFlood: Sierra Leone (2023-05-09)· 7 deaths
- 1673 CEEarthquake — Dominican Republic, Santo Domingo· 5 deaths
- 1988 CEBanda Api· 4 deaths
- 1927 CEFlash Flooding: Czechia (1927-05-09)· 4 deaths
- 1987 CEFlood: Australia (1987-05-09)· 3 deaths
- 1938 CEBandaisan· 2 deaths
- 1990 CEFlash Flooding: Germany (1990-05-09)· 2 deaths
- 2000 CEFlash Flooding: France (2000-05-09)· 2 deaths
- 2016 CESinabung· 1 deaths
- 1861 CEEarthquake — Italy, Citta Della Pieve· 1 deaths
- 1980 CEFluvial (Riverine) Flooding: Serbia (1980-05-09)· 0 deaths
- 2023 CEFlood: United Kingdom of Great Britain and Northern Ireland (2023-05-09)· 0 deaths
- 2020 CEFluvial (Riverine) Flooding: France (2020-05-09)· 0 deaths
- 1965 CEFluvial (Riverine) Flooding: Bosnia and Herzegovina (1965-05-09)· 0 deaths
- 2003 CEFlood: Iran (Islamic Republic of) (2003-05-09)· 0 deaths
- 2023 CEFlash Flooding: United Kingdom (2023-05-09)· 0 deaths
- 2022 CEFlood: Canada (2022-05-09)· 0 deaths
- 2006 CEFlood: United Republic of Tanzania (2006-05-09)· 0 deaths
- 2022 CEFlood: Bangladesh (2022-05-09)· 0 deaths
- 2010 CEEarthquake — Indonesia, N. Sumatra: Simeulue Island (Mw 7.2)