he planning and construction phase of what was known then as Aéroport de Paris Nord (Paris North Airport) began in 1966. On 8 March 1974 the airport, renamed Charles de Gaulle Airport, opened. Terminal 1 was built in an avant-garde design of a ten-floors-high circular building surrounded by seven satellite buildings, each with six gates. The main architect was Paul Andreu, who was also in charge of the extensions during the following decades.