The first wave of colonization by Slavonic settlers goes back to the 13th century in the Kingdom of Bohemia, but only includes the foothills; the mountain ridges were still unpopulated. The second wave of colonization of the foothills in the late 13th century was mostly by German settlers (Ostsiedlung); they first colonized the Silesian northern part, where farming conditions were better, and later the southern Bohemian part along the Elbe and Úpa rivers. Many agricultural settlements, markets and handcraft communities and cities were founded at that time, and they formed a base for the further colonization of the mountain range.
