On March 27, 1919, the name Bratislava was officially adopted for the first time to replace the previous Slovak name Prešporok. Left without any protection after the retreat of the Hungarian army, many Hungarians were expelled or fled. Czechs and Slovaks moved their households to Bratislava. Education in Hungarian and German was radically reduced in the city. By the 1930 Czechoslovak census, the Hungarian population of Bratislava had decreased to 15.8% (see the Demographics of Bratislava article for more details).