The first air field in Florence was created in the Campo di Marte area in 1910, when military authorities allowed a field to be used for "experiments in air navigation". Campo di Marte thus became Florence's first airport, and remained so throughout the 1920s. However, the field was soon surrounded by houses and was inadequate for the new aircraft that were then replacing the first canvas-covered craft. In 1928, a location on the plain between Florence and Sesto Fiorentino was chosen. Peretola Airport opened there on 4 June 1931. At first, Peretola was a large field where airplanes took off and landed with no formal direction, but eventually, the Ministry of Aeronautics decided to enlarge and upgrade it. The airport was extended toward Castello, and in 1938–39, an asphalt runway 60 metres (200 ft) wide and 1,000 metres (3,300 ft) long, facing northeast, was built. During World War II, Peretola was used both by the Royal Italian Air Force and the Luftwaffe and from 1944 by Allied air forces. Then later in the 1940s it welcomed its first passenger flights, operated by Aerea Teseo with Douglas DC-3 aircraft. In 1948, Aerea Teseo went out of business. In the late '50s and early '60s, Alitalia, also using the DC-3, offered two routes: Rome–Florence–Venice and Rome–Florence–Milan. ATI then offered several domestic flights with the Fokker F27. In the early 1980s, plans were made to upgrade the airport's facilities. In 1984, Saf (now AdF, the company that manages the airport) was founded, and restructuring work was completed: lengthening (to 1,400 m (4,600 ft)) and lighting the runway, installing a VOR/DME navigation system, and rebuilding the airport terminal. In September 1986, regular flights resumed. Since then, the number of airplanes and passengers has steadily increased. In 1990, the airport was renamed after Florence native Amerigo Vespucci, an Italian merchant and cartographer. In 1992, the building now dedicated to arrivals, constructed by AdF, was inaugurated. Two years later, a departures building opened, and the City of Florence opened a car park at the entrance to the airport. In 1996, the runway was extended by 250 m (820 ft), and AdF funded further enlargement of the departure area. The new area has 15 check-in desks and is 1,200 square metres (13,000 ft2) in area, 770 m2 (8,300 ft2) of which are for public use. Since 9 April 1998, AdF has had a global concession to managing the airport's infrastructure, and it has assumed responsibility for maintenance and development. In late 1999, a renovation and expansion of the terminals, aircraft parking areas, and other facilities began. In July 2000, AdF made its debut on the stock market, and in 2001, the airport was among the first in Europe to obtain UNI EN ISO 9001/2000 certification for the quality of its services. On 5 December 2012, Vueling announced the opening of a base of operations in Florence, with flights to several destinations in Europe.