The Jomon period of Japanese prehistory lasted from nearly 14000 BC to sometime after 900 BC. The period is divided into six sub-periods: incipient, initial, early, middle, late, final. Jomon people were hunter-gatherers exploiting wild resources for food, but also did some limited cultivation of crops like millet and beans.
Dogu are fired clay figurines. Early dogu from around 10,000 BC were abstract representations of the human figure and were quite small. By 4000 BC they had arms and legs and simple heads. By 3000 BC, the faces are fully formed. All dogu are highly stylised. They are not naturalistic representations of people. Over 20,000 dogu have been found on archaeological sites. Almost all of them were deliberately broken by their Jomon makers. On the other hand a small number of perfect dogu figurines have been found in pits and houses, and a few dogu were repaired with asphalt.