Historical Events
- Battle of Cedar Mountain [Slaughter's Mountain], fought in Culpeper County, Virginia, Confederate victory (US Civil War)
- Berlioz' opera "Beatrice et Benedict" premieres in Baden-Baden
Famous Deaths
- Charles S Winder, Confederate General killed at the Battle of Cedar Mountain VA, at 32
- Joseph Bennett Plummer, American Brigadier General (Union Army), dies at 42 or 46