Cisleithania was the name used to refer to the Austrian part of the Austro-Hungarian Empire from 1867 to 1918. It encompassed various regions, including Austria, Bohemia, Galicia, and parts of Hungary. The term distinguished this area from Transleithania, which referred to the Hungarian territories. Cisleithania was characterized by a diverse population, including ethnic groups such as Czechs, Slovaks, Poles, and Germans. The region had a complex administrative structure and was known for its cultural and economic contributions to the empire, particularly in areas like industry and education.