The history of Panama includes the history of the Isthmus of Panama prior to European colonization. Before the arrival of Europeans, Panama was widely settled by Chibchan, Chocoan, and Cueva peoples. There is no accurate knowledge of the size of the Pre-Columbian indigenous population. Estimates range as high as two million people. They lived mainly by hunting, gathering edible plants & fruits, growing corn, cacao, and root crops, and lived in small huts made of palm leaves.