In the Yayoi Period life changed from hunting and gathering to rice farming, which led to many problems on lands in order to getting field and water, so the bow and arrow developed into weapons on the battlefield.
弥生時代時代に入ると狩猟生活から稲作へと人々の生活が変化、それに伴い土地や水源確保のため領地争いが盛んになり、戦いの場で弓矢も武器として使用される。