Burgenland of Hungarians rapidly declined (14,931 people, 5%). This was due to the emigration of the Hungarian civil servants and intellectuals after the union with Austria. In 1923, emigration to the United States of America, which started in the late 19th century, reached its climax; in some places up to a quarter of the population went overseas. After the Nazi German "Anschluss" of Austria, the administrative unit of Burgenland was dissolved. Northern and central Burgenland joined the district of Niederdonau (Lower Danube) while southern Burgenland joined Steiermark (Styria). The policy of Germanization also affected other minorities, especially Burgenland Croats and Hungarians.
Burgenland Croatian majority being the Chakavians. They originally came from the river Una valley. Burgenland Croats did not take part in the shaping of the present standard Croatian in the 19th century. Instead, they constructed their own written standard based mainly on the local Chakavian speech and adopted the Croatian alphabet, a modified Latin alphabet, as their script. It is still a matter of debate whether Burgenland Croatian should be classified as a Slavic micro-language of its own. Burgenland Croatian dialects are mostly viewed as isolated dialects of the Croatian. Burgenland Croatian and the Prekmurje dialect of Slovene (in Prekmurje and Hungary)