 The Hungarian University in Bratislava/Pozsony was immediately closed after formation of Czechoslovakia 

According to the 1910 census conducted by the Central Statistical Office of Hungary, there were 884,309 people with Hungarian as a mother tongue, constituting 30.2% of the population, in what is now Slovakia compared to the 9.7% number recorded in the 2001 census, amounting to a 3 fold decrease in the percentage of Hungarians.The first Slovak census in 1919 in what is now Slovakia recorded 689,565 Hungarians constituting 23.59% of the population.According to the first Czechoslovak census in 1921 there were 650,597 Hungarians in Slovakia, constituting 21.68% of the population.