- Aug 2 Charles X of France abdicates in favour of his grandson the Duc de Bordeaux
- Aug 4 Plans for city of Chicago laid out
- Aug 9 Louis-Philippe formally accepts crown of France, following abdication of Charles X
- Aug 25 Belgium revolts against Netherlands and begins the Belgian Revolution
- Aug 28 1st American built locomotive, "Tom Thumb" races a horse-drawn car from Stockton and Stokes stagecoach company from Baltimore to Ellicott Mills. Let history record that due to mechanical problems the horse won!