which four people are killed. July 25 – The Soviet Mars 5 space probe is launched. July 28 – Skylab 3 (Owen Garriott, Jack Lousma, Alan Bean) is launched, to conduct various medical and scientific experiments aboard Skylab. July 31 – A Delta Air Lines DC-9 aircraft flying as Delta Air Lines Flight 173 lands short of Logan Airport runway at Boston, United States, in poor visibility, striking a sea wall about 165 feet (50 m) to the right of the runway centerline and about 3000 feet (914 m) short. All 6 crew members and 83 passengers are killed; one of the passengers died several months after the accident. August August 1 – Caribbean Community and Common Market (CARICOM) is inaugurated. August 2 – A flash fire kills 51 at the Summerland amusement centre at Douglas, Isle of Man. August 5 Black September members open fire at the Athens airport; 3 people are killed, 55 injured. Mars 6, also known as 3MP No.50P, is launched by the Soviet Union to explore Mars. August 8 – South Korean politician Kim Dae-jung is kidnapped in Tokyo by the KCIA. August 15 – The U.S. bombing of Cambodia ends, officially halting 12 years of combat activity in Southeast Asia according to the Case–Church Amendment-an act that prohibits military operations in Laos, Cambodia, and North and South Vietnam as a follow up of the Paris Peace Accords. August 23 – The Norrmalmstorg robbery occurs, famous for the origin of the term Stockholm syndrome. September September 9 – Scottish racing driver Jackie Stewart becomes World Drivers' Champion when his Tyrrell 003-Cosworth finishes fourth in the 1973 Italian Grand Prix at Monza. September 11 – Chile's democratically elected government is overthrown in a violent military coup after serious political instability. President Salvador Allende allegedly commits suicide during the coup in the presidential palace, and General Augusto Pinochet heads a US-backed military junta that governs Chile for the next 17 years. September 15 – Carl XVI Gustaf, becomes King of Sweden following the death of his grandfather, King Gustaf VI Adolf. September 18 – The two German Republics, the Federal Republic of Germany (West Germany) and the German Democratic Republic (East Germany), are admitted to the United Nations. September 27 Soviet space program: Soyuz 12 (Vasily Lazarev, Oleg Makarov), the first Soviet manned flight since the Soyuz 11 tragedy in 1971, is launched. Luís Cabral declares the