population of the country increased. Bilingualism was also disappearing. The main reasons of this process were both spontaneous assimilation and the deliberate Magyarization policy of the state. Minorities made up 8% of the total population in 1930 and 7% in 1941 (on the post-Trianon territory). After World War II about 200,000 Germans were deported to Germany according to the decree of the Potsdam Conference. Under the forced exchange of population between Czechoslovakia and Hungary, approximately 73,000 Slovaks left Hungary. After these population movements Hungary became an ethnically almost homogeneous country except the rapidly growing number of Romani people in the second half of the 20th century. After the First Vienna Award which gave Carpathian Ruthenia to Hungary, a Magyarization campaign was started by the Hungarian government in order to remove Slavic nationalism from Catholic Churches and society. There were reported interferences in the Uzhorod (Ungvár) Greek Catholic seminary, and the Hungarian-language schools excluded all pro-Slavic students. According to Chris Hann, most of the Greek Catholics in Hungary are of Rusyn and Romanian origin, but they have been almost totally Magyarized. While according to the Hungarian Catholic Lexicon, though originally, in the 17th century, the Greek Catholics in the Kingdom of Hungary were mostly composed of Rusyns and Romanians, they also had Polish and Hungarian members. Their number increased drastically in the 17–18th centuries, when during the conflict with Protestants many Hungarians joined the Greek Catholic Church, and so adopted the Byzantine Rite rather than the Latin. In the end of the 18th century, the Hungarian Greek Catholics themselves started to translate their rites to Hungarian and created a movement to create their own diocese. See also Treaty of Trianon Transylvanian Memorandum Slovakization Romanianization Serbianisation Ukrainization 1848–1849 massacres in Transylvania Magyaron References Sources Dr. Dimitrije Kirilović, Pomađarivanje u bivšoj Ugarskoj, Novi Sad – Srbinje, 2006 (reprint). Originally printed in Novi Sad in 1935. Dr. Dimitrije Kirilović, Asimilacioni uspesi Mađara u Bačkoj, Banatu i Baranji, Novi Sad – Srbinje, 2006 (reprint). Originally printed in Novi Sad in 1937 as Asimilacioni uspesi Mađara u Bačkoj, Banatu i Baranji – Prilog pitanju demađarizacije Vojvodine. Lazar Stipić, Istina o Mađarima, Novi Sad – Srbinje, 2004 (reprint). Originally printed in Subotica in 1929 as Istina o Madžarima. Dr. Fedor Nikić, Mađarski imperijalizam, Novi Sad – Srbinje, 2004 (reprint). Originally printed in Novi Sad in 1929. Borislav Jankulov, Pregled kolonizacije Vojvodine u XVIII i XIX veku, Novi