American golfer Tiger Woods wins the 82nd PGA Championship and becomes the first golfer since Ben Hogan in 1953 to win three majors in a calendar year.
NASA loses contact with the Mars Observer spacecraft.
Latvia declares renewal of its full independence after its occupation by the Soviet Union since 1940.
The 6.9 Mw Nepal earthquake shakes the Nepal–India border with a maximum Mercalli intensity of VIII (Severe), leaving 709–1,450 people killed and thousands injured.
Lebanese Civil War: The first troops of a multinational force lands in Beirut to oversee the Palestine Liberation Organization's withdrawal from Lebanon.
James Anderson Jr. posthumously receives the first Medal of Honor to be awarded to an African American U.S. Marine.
Xá Lợi Pagoda raids: The Army of the Republic of Vietnam Special Forces loyal to Ngô Đình Nhu, brother of President Ngo Dinh Diem, vandalizes Buddhist pagodas across the country, arresting thousands and leaving an estimated hundreds dead.
United States President Dwight D. Eisenhower signs an executive order proclaiming Hawaii the 50th state of the union. Hawaii's admission is currently commemorated by Hawaii Admission Day.
The Soviet Union successfully conducts a long-range test flight of the R-7 Semyorka, the first intercontinental ballistic missile.
Dumbarton Oaks Conference, prelude to the United Nations, begins.
World War II: Canadian and Polish units capture the strategically important town of Falaise, Calvados, France.
World War II: The Guadalcanal campaign: American forces defeat an attack by Imperial Japanese Army soldiers in the Battle of the Tenaru.
World War I: The Second Battle of the Somme begins.
World War I: The Battle of Charleroi, a successful German attack across the River Sambre that pre-empted a French offensive in the same area.
The first successful adding machine in the United States is patented by William Seward Burroughs.
The Stadtpark, the first public park in Vienna, opens to the public.
The first of the Lincoln–Douglas debates is held in Ottawa, Illinois.
Tlingit Indians destroy Fort Selkirk, Yukon Territory.
Battle of Vimeiro: British and Portuguese forces led by General Arthur Wellesley defeat French force under Major-General Jean-Andoche Junot near the village of Vimeiro, Portugal, the first Anglo-Portuguese victory of the Peninsular War.
Enslaved Africans in Saint-Domingue, led by Dutty Boukman, held a Vodou ceremony that became a pivotal act of resistance. This gathering sparked a mass uprising against slavery, marking the beginning of the Haitian Revolution.