2010 Summer Youth Olympic Games, first ever Youth Olympics, officially starts in Singapore.

The 2007 Kahtaniya bombings kills at least 796 people.

Chencholai bombing in which 61 Tamil girls are killed in Sri Lankan Airforce bombing.

Widescale power blackout in the northeast United States and Canada.

Ilich Ramírez Sánchez, also known as "''Carlos the Jackal''," is captured.

All the children held at Kia Lama, a rural property on Lake Eildon, Australia, run by the Santiniketan Park Association, are released after a police raid.

Lech Wałęsa leads strikes at the Gdańsk, Poland shipyards.

The Senegalese political party ''PAI-Rénovation'' is legally recognized. PAI-Rénovation thus becomes the third legal party in the country.

The constitution of 1973 comes into effect in Pakistan

An East German Ilyushin Il-62 crashes during takeoff from East Berlin, killing 156.

British troops are deployed in Northern Ireland.

UK Marine Broadcasting Offences Act declares participation in offshore pirate radio illegal.

Founding and first official meeting of the American Football League.

Don Bradman, widely regarded as the best cricket batsman in history, makes a duck in his final Test innings.

Pakistan gains Independence from the British Indian Empire and joins the Commonwealth of Nations.

Japan accepts the Allied terms of surrender in World War II and the Emperor records the Imperial Rescript on Surrender (August 15 in Japan standard time).

World War II

Chinese Air Force Day: The beginning of air-to-air combat of the Second Sino-Japanese War and World War II in general, when 6 Imperial Japanese Mitsubishi G3M bombers are shot down by the Nationalist Chinese Air Force while raiding Chinese air bases.

Rainey Bethea is hanged in Owensboro, Kentucky in the last public execution in the United States.

United States Social Security Act passes, creating a government pension system for the retired.

Loggers cause a forest fire in the Coast Range of Oregon, later known as the first forest fire of the Tillamook Burn. It is extinguished on September 5, after destroying 240,000 acres (970 km²).

The original Hetch Hetchy Moccasin Powerhouse is completed and goes on line.

Tannu Tuva, later Tuvinian People's Republic is established as a completely independent country (which is supported by Soviet Russia).

United States Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.

United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.

The first beauty contest is held in Folkestone, England.

The first claimed powered flight, by Gustave Whitehead in his Number 21.

A joint European-Japanese-United States force (Eight-Nation Alliance) occupies Beijing, in a campaign to end the bloody Boxer Rebellion in China.

The town of Anosimena is captured by French troops from Menabe defenders in Madagascar.

France introduces motor vehicle registration.

A recording of English composer Arthur Sullivan's The Lost Chord, one of the first recordings of music ever made, is played during a press conference introducing Thomas Edison's phonograph in London.

Japan's first patent is issued to the inventor of a rust-proof paint.

Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.

Oregon Territory is organized by act of Congress.

The Cape Girardeau meteorite, a 2.3 kg chondrite-type meteorite strikes near the town of Cape Girardeau in Cape Girardeau County, Missouri.

Indian Wars: Second Seminole War ends, with the Seminoles forced from Florida to Oklahoma.

Nine Years War (Ireland)|Nine Years War: Battle of the Yellow Ford

Imjin War: Battle of Hansando Admiral Yi Sun-sin decisively defeats the Japanese Navy at Hasan Island.

1383-1385 Crisis|Portuguese Crisis of 1383–1385: Battle of Aljubarrota

Taira no Munemori and the Taira clan take the young Emperor Antoku and the three sacred treasures and flee to western Japan to escape pursuit by the Minamoto clan. (Traditional Japanese date: Twenty-fifth Day of the Seventh Month of the Second Year of Juei).