Czech Americans , known in the 19th and early 20th century as Bohemian Americans, are citizens of the United States who are of Czech descent. Czechs originate from the Czech lands, a term which refers to the majority of the traditional lands of the Bohemian Crown, namely Bohemia, Moravia and Czech Silesia. These lands have been governed by a variety of states, including the Kingdom of Bohemia, the Austrian Empire, the Czechoslovak Republic, and the Czech Republic. Germans from the Czech lands who emigrated to the United States usually identified as German American, or, more specifically, as Americans of German Bohemian descent. According to the 2000 US census, there are 1,262,527 Americans of full or partial Czech descent, in addition to 441,403 persons who list their ancestry as Czechoslovak.