- King of Hawaiʻi Kamehameha I defeats Kalanikupule and conquers island of Oʻahu at Battle of Nuʻuanu [approx. date]
- Vanguard TV-1 booster test reaches an altitude of 121 miles (195 km)
- Anastasio Somoza Debayle becomes President of Nicaragua
- Houston Astros hurler Don Wilson blanks Reds, 4-0 for second career no-hitter, at Crosley Field in Cincinnati
- The Los Angeles May Day mêlée occurs, in which the Los Angeles Police Department's response to a May Day pro-immigration rally becomes a matter of controversy
- Emily Stowe, Canadian suffragist and first woman licensed to practise medicine in Canada, born in Norwich Township, Oxford County, Ontario (d. 1903)
- Enriko Josif, Serbian composer and pedagogue (Lyric Symphony), born in Belgrade, Yugoslavia (d. 2003)
- Greta Andersen, Danish swimmer (Olympic gold 100m freestyle, silver 4×100m freestyle 1948), born in Copenhagen, Denmark (d. 2023)
- András Törőcsik, Hungarian soccer forward (45 caps; Újpest Dozsa FC, Montpellier), born in Budapest, Hungary (d. 2022)
- Damon Diletti, Australian field hockey goal keeper (Olympic silver 1992; Champions Trophy gold 1999), born in Perth, West Australia