4th » The Treaty of Sistova is signed, ending the Ottoman–Habsburg wars.
7th » American troops destroy the Miami people known as Miami town of Battle of Kenapacomaqua known as Kenapacomaqua near the site of present-day Logansport, Indiana in the Northwest Indian War.
22nd » Beginning of the Haitian Haitian Revolution or Slave Revolution in Saint-Domingue.
26th » John Fitch (inventor) e.g John Fitch is granted a United States patent for the steamboat.
30th » HMS Pandora 1779 6 sinks after having run aground on a reef the previous day.
Famous Deaths for August 1791
16th » Charles-François de Broglie, marquis de Ruffec, French soldier and diplomat (b. 1719)