around 12000 BC. The Natufians were sedentary for more than 2000 years before they, at some sites, started to cultivate plants around 10000 BC. A year-round sedentary site, with its larger population, generates a substantial demand on locally provided natural resources, a demand that may have triggered the development of deliberate agriculture. The Jōmon culture in Japan, which was primarily a coastal culture, was sedentary from c. 12000 to 10000 BC, before the cultivation of rice at some sites in northern Kyushu. In northernmost Scandinavia, there are several early sedentary sites without evidence of agriculture or cattle breeding. They appeared from c. 5300–4500 BC and are all located optimally in the landscape for extraction of major ecosystem resources; for example, the Lillberget Stone Age village site (c. 3900 BC), the Nyelv site (c. 5300 BC), and the Lake Inari site (c. 4500 BC). In northern Sweden the earliest indication of agriculture occurs at previously sedentary sites, and one example is the Bjurselet site used during the period c. 2700–1700 BC, famous for its large caches of long distance traded flint axes from Denmark and Scania (some 1300 km). The evidence of small-scale agriculture at that site can be seen from c. 2300 BC (burnt cereals of barley). Historical effects of increased sedentism Sedentism increased contacts and trade, and the first Middle East cereals and cattle in Europe, could have spread through a stepping stone process, where the productive gift (cereals, cattle, sheep and goats) were exchanged through a network of large pre-agricultural sedentary sites, rather than a wave of advance spread of people with agricultural economy, and where the smaller sites found in between the bigger sedentary ones did not get any of the new products. Not all contemporary sites during a certain period (after the first sedentism occurred at one site) were sedentary. Evaluation of habitational sites in northern Sweden indicates that less than 10 percent of all the sites around 4000 BC were sedentary. At the same time, only 0.5–1 percent of these represented villages with more than 3–4 houses. This means that the old nomadic or migratory life style continued in a parallel fashion for several thousand years, until somewhat more sites turned to sedentism, and gradually switched over to agricultural sedentism. The shift to sedentism is coupled with the adoption of new subsistence strategies, specifically from foraging (hunter-gatherer) to agricultural and animal domestication. The development of