Vienna was the capital of the Austro-Hungarian Empire and the residence of the Emperor.

The two main ethnic groups in the Austro-Hungarian Empire were the Germans and the Hungarians.

German was the official language of the Austro-Hungarian Empire.

Roman Catholicism was the religion of the majority of the population of the Austro-Hungarian Empire.

The Austro-Hungarian Empire was a constitutional monarchy.

Franz Joseph I was the first Emperor of the Austro-Hungarian Empire.

Charles I was the last Emperor of the Austro-Hungarian Empire.

World War I was the cause of the collapse of the Austro-Hungarian Empire.

The collapse of the Austro-Hungarian Empire had a number of consequences, including the creation of new nation-states, the rise of communism, and the outbreak of World War II.

The Austro-Hungarian Empire has a rich cultural heritage, a history of political instability, and a legacy of ethnic conflict.

The Austro-Hungarian Empire made significant contributions to classical music, opera, literature, and art.

Franz Joseph I, Charles I, Leopold I, and Joseph II are all famous political figures from the Austro-Hungarian Empire.

Germans, Hungarians, Czechs, and Slovaks are all famous ethnic groups from the Austro-Hungarian Empire.

Vienna, Budapest, Prague, and Ljubljana are all famous cities from the Austro-Hungarian Empire.

The Battle of Mohács, the Siege of Vienna, the Austro-Prussian War, and World War I are all famous events from the history of the Austro-Hungarian Empire.