Births on April 18

William Debenham, English founder of Debenhams (d. 1863)

William Debenham (; 18 April 1794 – 24 September 1863) was the founder of Debenhams, once one of the largest retailers in the United Kingdom.

27 Mar

Original six frigates of the United States Navy
The United States Government establishes a permanent navy and authorizes the building of six frigates.
8 May

French Revolution
Branded a traitor during the Reign of Terror by revolutionists, French chemist Antoine Lavoisier, who was also a tax collector with the Ferme générale, is tried, convicted and guillotined in one day in Paris.
26 Jun

Battle of Fleurus (1794)
French Revolutionary Wars: Battle of Fleurus marked the first successful military use of aircraft.
28 Jul

Maximilien Robespierre
French Revolution: Maximilien Robespierre and Louis Antoine de Saint-Just are executed by guillotine in Paris, France.
7 Aug

Whiskey Rebellion
U.S. President George Washington invokes the Militia Acts of 1792 to suppress the Whiskey Rebellion in western Pennsylvania.