1 Sputnik 1, the first artificial satellite to go into orbit, launched 4 October 1957. 2  Sputnik 2, the first spacecraft to carry a living animal (the dog Laika), launched 3 November 1957.  Sputnik 3, a research satellite launched 15 May 1958.
By population the 3 largest cities in Spain are Madrid 2.9 million, Barcelona 1.5 million, and Valencia 741,000. They include: the capital Madrid, Barcelona and Valencia. Onlyâ¦ two  of Spain's cities, the national capital Madrid and Barcelona, have  populations of more than one million.
[bilËÎ²ao] ; Basque: Bilbo [bilÎ²o]) is a municipality and city in Spain, the capital of the province of Biscay in the autonomous community of the Basque Country. It is the largest municipality of the Basque Country and the tenth largest in Spain, with a population of 353,187 in 2010.ilbao is situated in the north-central part of Spain, some 14 kilometres (8.7 mi) south of the Bay of Biscay, where the estuary of Bilbao is formed.