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
Second city of the United Kingdom remained steady around the one million mark; its central population fell like Glasgow's, but the city boundaries were extended several times in the early 20th century. Occasional claims were made for Liverpool, Birmingham and Manchester. Since World War I, and up to the beginning of the 21st century, Birmingham had been considered by many to be the second city. Based on population within actual city boundaries the City of Birmingham, the most populous local government district in Europe, is substantially larger than the City of Manchester, which is the fifth largest in the UK (2006 estimates, see List of English