History History through the Nineteenth Century A part of the Roman province of Pannonia, Croatia was settled in the 7th cent. by Croats, who accepted Christianity in the 9th cent. A kingdom from t

The lands that today comprise Croatia were part of the Austro-Hungarian Empire until the close of World War I. In 1918, the Croats, Serbs, and Slovenes formed a kingdom known after 1929 as Yugoslavia.