Doubtless there was some sort of cultivation: starchy yams and taro, almost certainly originating from your continent, had been lifted, the starch from them shaped into a variety of bread. This incipient agriculture appears to be related to a cultural florescence in mid-Jōmon situations that lasted about 1,000 many years. https://artworkfacebook47913.acidblog.net/60006780/new-step-by-step-map-for-shokupan-bread