Soybean Myths and Legends

The mythical shinong gave us the soy bean as a domestic crop five thousand years ago. The author's stress at the real time period is likely a eleventh century b c e, or perhaps a bit earlier,. So is still really impressive. Now, do we know anything about how the soybine was domesticated? Or does it seem like an accidental process of picking and then cultivating the ones that stayed closed the longest in the natural varieties?"