1957 significant event Sputnik -1
October
October 1 – The Africanized bee is accidentally released in Brazil.
October 4
Space Age – Sputnik program: The Soviet Union launches Sputnik 1, the first artificial satellite to orbit the Earth.
The Avro Canada CF-105 Arrow delta wing interceptor aircraft is unveiled.
October 9 – The Jodrell Bank radio telescope in Cheshire, England, is controlled from its control room for the first time.
October 10 – Windscale fire: Fire at the Windscale nuclear reactor on the north-west coast of England releases radioactive material into the surrounding environment, including iodine-131.
October 11 – The orbit of the last stage of the R-7 Semyorka rocket (carrying Sputnik I) is first successfully calculated on an IBM 704 computer at the MIT Computation Center as part of Operation Moonwatch, Cambridge, Massachusetts.
October 20 – Two trains collide at Yarımburgaz in Turkey; 95 die.
October 23 – Morocco begins its invasion of Ifni.
October 27 – Celâl Bayar is re-elected president of Turkey.