area which was part of the Stelling van Amsterdam defence works. Schiphol opened on 16 September 1916 as a military airbase, with a few barracks and a field serving as platform and runways. When civil aircraft started to use the field (17 December 1920), it was often called . The Fokker aircraft manufacturer started a factory near Schiphol airport in 1919. The end of the First World War also saw the beginning of civilian use of Schiphol Airport and the airport eventually lost its military role completely. By 1940, Schiphol had four asphalt runways at 45-degree angles, all or less. One was extended to become today's runway 04/22; two others crossed that runway at . The airport was captured by the German military that same year and renamed . A large number of anti-aircraft defences were installed in the vicinity of the airport and fake decoy airfields were constructed in the vicinity near Bennebroek, Vijfhuizen, and Vogelenzang to try to confuse Allied bombers. A railway connection was also built. Despite these defences, the airfield was still bombed intensively; an exceptionally heavy attack on 13 December 1943 caused so much damage that it rendered the airfield unusable as an active base. After that, it served only as an emergency landing field, until the Germans themselves destroyed the remnants of the airfield at the start of Operation Market Garden. At the end of the war, the airfield was quickly restored: the first aircraft, a Douglas DC-3, landed on 8 July 1945. A new terminal building was completed in 1949 and it was decided that Schiphol was to become the primary airport of the Netherlands. The expansion came at the cost of a small town called Rijk, which was demolished to make room for the growing airport. The name of this town is remembered in the name of the present Schiphol-Rijk industrial estate. In 1967, Schiphol expanded even further with a new terminal area at its current location. Most of the 1967 terminal is still in use today (Departure Halls 1 and 2) as are parts of the original piers (now called C, D, and E). Dutch designer Benno Wissing created signage for Schiphol Airport, well known for its clear writing and thorough colour-coding; to avoid confusion, he prohibited any other signage in the shades of yellow and green used. The new terminal building replaced the older facilities once located on what is