 Complete the following phrase:  After the dissolution of the Austro-Hungarian monarchy in 1918, the area in which the Burgenland Croats lived was divided between Austria, Czechoslovakia and Hungary. After 1921, most of these areas became part of Austria, which established a new province of Burgenland, which later gave the Burgenland identifier to these Croats. In 1922, Austria founded the Apostolic administration of Burgenland, and began to abolish bilingual schools, by introducing the German language to 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 