Ancient wheat suggests early China, Middle East trade

Wheat grains nearly 5,000 years old found at a Chinese archaeological site two years ago, have revealed that western man travelled to China much earlier than previously thought.

The research, published by Professor John Dodson and Professor Xiaoqiang Li, shows there are no modern wild varieties of the wheat and barley, which were found in the region in a domesticated form, and carbon dated to 2,650BC.