- 1200 – King John of England and King Philip II of France sign the Treaty of Le Goulet.
- 1246 – Henry Raspe is elected anti-king of the Kingdom of Germany, in opposition to Conrad IV.
- 1254 – Serbian King Stefan Uroš I and the Republic of Venice sign a peace treaty.
- 1370 – Some Jews were executed and others expelled from Brussels, Belgium.
- 1762 – Sweden and Prussia sign the Treaty of Hamburg.
- 1799 – Napoleon makes a statement in support of re-establishing Jerusalem for the Jews.
- 1809 – On the second and last day of the Battle of Aspern-Essling (near Vienna, Austria), Napoleon I is repelled by an enemy army for the first time.
- 1812 – Action of 22 May 1812: A small French two-frigate squadron comprising Ariane and Andromaque, returning from a commerce raiding campaign in the Atlantic, meets the 74-gun HMS Northumberland while trying the slip to Lorient through the British blockade.
- 1816 – A mob in Littleport, Cambridgeshire, England, riots over high unemployment and rising grain costs; the rioting spreads to Ely the next day.
- 1819 – The SS Savannah leaves port at Savannah, Georgia, United States, on a voyage to become the first steamship to cross the Atlantic Ocean. The ship arrived atLiverpool, England, on June 20.
- 1826 – HMS Beagle departs on its first voyage.
- 1840 – The transportation of British convicts to the New South Wales colony is abolished.
- 1848 – Slavery is abolished in Martinique.
- 1849 – Future U.S. President Abraham Lincoln is issued a patent for an invention to lift boats over obstacles in a river, making him the only U.S. President to ever hold a patent.
- 1906 – The Wright brothers are granted U.S. patent number 821,393 for their “Flying-Machine”.
- 1939 – World War II: Germany and Italy sign the Pact of Steel.
- 1941 – During the Anglo-Iraqi War, British troops take Fallujah.
- 1942 – Mexico enters World War II on the side of the Allies.
- 1943 – Joseph Stalin disbands the Comintern.
- 1945 – United States Army Major Robert B. Staver recommends that the U.S. evacuate German scientists and engineers to help in the development of rocket technology.
- 1947 – Cold War: In an effort to fight the spread of Communism, the U.S. President Harry S. Truman signs an act into law that will later be called the Truman Doctrine. The act grants $400 million in military and economic aid to Turkey and Greece, each battling an internal Communist movement.
- 1958 –Ceylon: This riot is a watershed event in the race relationship of the various ethnic communities of Sri Lanka. The total number of deaths is estimated to be 300, mostly Sri Lankan Tamils.
- 1962 – Continental Airlines Flight 11 crashes after bombs explode on board.
- 1968 – The nuclear-powered submarine the USS Scorpion sinks with 99 men aboard 400 miles southwest of the Azores.
- 1969 – Apollo 10’s lunar module flies within 8.4 nautical miles (16 km) of the moon’s surface
- 1992 – Bosnia and Herzegovina, Croatia and Slovenia join the United Nations.
- 2010 – An Air India Express Boeing 737 goes over a cliff and crashes upon landing at Mangalore, India, killing 158 of the 166 people on board. It is the worst crash involving a Boeing 737.
- 2014 – General Prayut Chan-o-cha of the Royal Thai Armed Forces announces a military coup d’état, following six months of political turmoil.
22nd May in History
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