Medieval period in Bosnia lasted until the invasion of Ottoman empire. The social organization of Bosnia of that time developed into what was called Zadruga. It was the community organized by few families of common interests situated usually in a cluster housing formation. Leaders of the community were selected according to their age and high ethical standards. Zadruga was primarily a rural, agrarian community greatly dependent on natural resources. As the community grew segments of families would collectively move to another area forming a new cluster or a village. Soon these multiple nuclei were linked stimulating trade and economy. Families lived in what was called a Dinaric house. It was a simple structure build of natural materials usually timber and wickerwork. Interior was organized around the hearth in family room with secluded private men’s and woman’s quarters.