Graz Airport camp, run by the governments of Franz Joseph I of Austria and Charles I of Austria. The first domestic passenger flight in Austria in 1925 serviced the route Vienna–Graz–Klagenfurt. In 1930 Yugoslav flag-carrier Aeroput introduced regular flights linking Yugoslav capital Belgrade with Vienna with stops in Zagreb and Graz. In 1937, the construction of a terminal building began due to increase in the number of passengers. After the end of the Second World War, however, Austria was forbidden to possess an aviation fleet, neither military nor civil. After reopening of Austrian airspace in 1951, a new concrete runway of was
Graz the square of what is now a mental hospital, and succeeded in returning Styria to the authority of the Holy See. Archduke Franz Ferdinand was born in Graz, in what is now the Stadtmuseum (city museum). The more recent population figures do not give the whole picture as only people with principal residence status are counted and people with secondary residence status are not. Most of the people with secondary residence status in Graz are students. At the end of 2016 there were 33,473 people with secondary residence status in Graz. Oceanic climate is the type found in the city,