The Puskás Tivadar Technical School of Telecommunications evolved from the Technicians’ Training School founded by the Royal Hungarian Post in 1912 into Hungary’s most important secondary telecommunications institution. The first telegraph line in Austria-Hungary was built between Pozsony (today Bratislava, Slovakia) and Vienna in 1847, and in 1881 the Puskás brothers (Tivadar and Ferenc) built Budapest’s first telephone exchange and telephone network. This development encouraged the training of specialists in Hungary. On the initiative of one of the first post office engineers, Endre Kolossváry, the Royal Post started setting up a vocational school specialising in this area. The three-storey, neo-baroque school building in Gyáli Street in Budapest, designed and built by the architect Róbert Fleischl, was completed in two years. The Royal Hungarian Post’s Technicians’ Training School began operating on 24 October 1912. As a result of changes made after the Second World War and later developments and modernisations, by the 1960s the Puskás Tivadar Technical School of Telecommunications had become the centre of excellence in communications in Hungary providing vocational training with modern equipment.