Pius XI thus became a head of a tiny state with its own territory, army, radio station, and diplomatic representation. The Concordat of 1929 made Catholicism the sole religion of Italy (although other religions were tolerated), paid salaries to priests and bishops, recognized church marriages (previously couples had to have a civil ceremony), and brought religious instruction into the public schools. In turn the bishops swore allegiance to the Italian state, which had a veto power over their selection.[227] The Church was not officially obligated to support the Fascist regime; the strong differences remained but the seething hostility ended.