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 Slovene culture, Graz remains permanently important due to its university and the Universalmuseum Joanneum archives containing numerous documents from the Slovenian Styria. A symposium on the relation of Graz and the Slovenes was held in Graz in 2010, at the occasion of the 200th anniversary of the establishment of the first and oldest chair of Slovene. It was established at the Lyzeum of Graz in July 1811 on the initiative of . A collection of lectures on the topic was published. The Slovenian Post commemorated the anniversary with a stamp. For Graz's stint as Cultural Capital of Europe a