In the past, number of Serbs who immigrated to the United States was difficult to find as Serb immigrants were often recorded by their country of origin, so as Turks, Croats, Slovenes, Montenegrins, Dalmatians, Bosnians, Herzegovinians and Austro-Hungarians. In the 1910 census, there were 16,676 Serbs from Austria-Hungary, 4,321 from Serbia, and 3,724 from Montenegro.