Honduran president Manuel Zelaya is ousted by a local military coup following a failed request to hold a referendum to rewrite the Honduran Constitution. This was the start of the 2009 Honduran constitutional crisis.
For the first time in military history, a civilian population is targeted for chemical attack when Iraqi warplanes bombed the Iranian town of Sardasht.
Elections are held for the Northern Ireland Assembly, which will lead to power-sharing between unionists and nationalists in Northern Ireland for the first time.
In Poznań, workers from HCP factory go to the streets, sparking one of the first major protests against communist government both in Poland and Europe.
Boxer Dick Turpin beats Vince Hawkins at Villa Park in Birmingham to become the first black British boxing champion in the modern era.
World War II: Nazi Germany starts its strategic summer offensive against the Soviet Union, codenamed Case Blue.
The Treaty of Versailles is signed, ending the state of war between Germany and the Allies of World War I.
Causes of World War I: Archduke Franz Ferdinand of Austria and his wife Sophie are assassinated in Sarajevo, beginning the July Crisis and providing the casus belli of World War I.
The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
The US Congress establishes the first federal holidays (New Year Day, July 4th, Thanksgiving, and Christmas).
The first conformation dog show is held in Newcastle upon Tyne, England.
Coronation of Queen Victoria of the United Kingdom.
American Revolutionary War: The American Continentals engage the British in the Battle of Monmouth Courthouse resulting in standstill and British withdrawal under cover of darkness.
American Revolutionary War: The Battle of Sullivan's Island ends with the American victory, leading to the commemoration of Carolina Day.
American Revolutionary War: Thomas Hickey, Continental Army private and bodyguard to General George Washington, is hanged for mutiny and sedition.
Charles V is elected Emperor of the Holy Roman Empire.
Fighters of the First Crusade defeat Kerbogha of Mosul at the battle of Antioch.