- Aug 1 Bolton and Leigh Railway opens to freight traffic.
- Aug 20 Gioacchino Rossini's opera "Le Comte Ory" premieres in Paris
- Aug 20 Hindi reform movement Brahmo Samaj founded by Ram Mohan Roy and Dwarkanath Tagore in Calcutta
- Aug 24 Dutch army takes Fort Du Bus in New Guinea
- Aug 27 Uruguay gains independence during Brazil-Argentina peace talks
- Aug 27 The Russians defeat the Turks at the Battle of Akhalzic.