Historical Events
- 108th Boston Marathon: Kenyan double; Timothy Cherigat takes men's title in 2:10:37; Catherine Ndereba wins her 3rd women's event in 2:24:27
Famous Deaths
- John Maynard Smith, English biologist (b. 1920)
- Norris McWhirter, Scottish co-founder of the Guinness Book of Records (b. 1925)