 Complete the following phrase:  After the dissolution of the Austro-Hungarian monarchy in 1918 the areas in which Burgenland Croats lived were divided between Austria, Czechoslovakia and Hungary. After 1921 most of these areas became part of Austria, which established a new province of Burgenland, after which the Croatian minority was named. In 1922 Austria founded the Apostolic administration of Burgenland and began to abolish bilingual schools through the introduction of the teaching of German in all primary schools. This process was temporarily stopped after The National Education Act, that allowed the work of the Croatian elementary schools, was adopted. After Hitler 