Archaeologists at the University of York, leading a large international team, have revealed surprising new insights into why pottery production increased significantly at the end of the last Ice Age – with culture playing a bigger role than expected.
Investigating the use and expansion of hunter-gatherer pottery in Japan, home to some of the earliest pottery in the world, researchers analysed 143 ceramic vessels from Torihama, an ancient site in western Japan.
Pottery is thought to have originated in Japan around 16,000 years ago, but the numbers produced vastly increased 11,500 years ago, coinciding with a shift to a warmer climate. As resurgence in forests took place, an increase in vegetation and animals led to new food sources becoming available.
Previous thinking suggested that pottery use and production increased to accommodate different cooking and storage techniques for the wider variety of foodstuffs available at this time. However, new analysis reveals this not to be the case.
Performing molecular and isotopic analysis of lipids extracted from vessels spanning a 9000 year period, the researchers found that pottery was used largely for cooking marine and freshwater animal species – a routine that remained constant despite climate warming and new resources becoming available.
Finding surprisingly little evidence of plant processing in pottery, or cooking of animals such as deer, researchers found the only significant change to be the different types of fish consumed, such as an increase in freshwater fish.