10,000 to 250 B.C.

Cultivated plants

In 2011, radioactive carbon dating has revealed that the lacquer tree found at the Torihama shell mounds is the oldest lacquer tree in the world, dating back 12600 years.

Evidence of early beefsteak plant perilla (Jap. 'egoma') was found. Other plants that were cultivated were bottle gourd, hemp (Cannabis

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