The first wave of emigration came in the 1530s, after the Turks destroyed almost all the settlements between the river Una and the mountain Velebit, along with the land between the river Kupa and the mountain range Kapela. In the second wave of emigration in the 1540s, many Croats left Slavonia. The third and last wave of emigration, came in the 1750s and 1760s.