Historical Events
- Indianapolis 500: Frank Lockhart wins in 5:12:48.768 (154.343 km/h)
- Portuguese president Bernardino Machedo resigns after coup
- Sesquicentennial Exposition opens in Philadelphia
Famous Birthdays
- Derek Birley, founding Vice-Chancellor of the University of Ulster
- Martin Peake, 2nd Viscount Ingleby, British peer and business man (d. 2008)
- Probir Sen, cricket wicket-keeper (India in late 40's/early 50's)