The art of painting on bark was once widely found in many parts of the Pacific, including the Sepik River region of Papua New Guinea, the home of the Kwoma people who are the subject of this study. The styles of the paintings and the subjects of designs were as varied as the hundreds of languages spoken in this region.

Following European contact at the end of the nineteenth century, and the social change this brought, many New Guinea peoples discontinued producing their vibrant designs on ba...

During a considerable part of prehistory stone tools were indispensable. Flint in particular had properties that made it very suitable for making razor-sharp implements and could often, but not always, be collected locally. Hunters, gatherers and fishers mostly used small tools but with the transition to an agricultural way of living this situation changed, as larger implements became necessary, to cut down trees and work wood for instance.

The raw material suitable for this was often not av...

The Iranian highlands are characterized by very special resource conditions: although being dominated in large parts by aridity, the presence of ecological niches and specific weather phenomena, along with rich deposits of minerals and raw materials, provide livelihoods for pre-modern societies. These conditions have favoured the development of different but also specific practices based on intricate knowledge of individual resources. Ancient communities in this region have developed very spe...