Where does the Japanese rice cake come from? Which Great Sage can answer this question?

The traditional Japanese rice cake-beating activity originated from the places where rice was planted in southern China and Southeast Asia, and spread to Japan from the yayoi period, with a history of more than 2,000 years.

The tools for making rice cakes are mortar and wooden hammer. It takes at least two people to make rice cakes, one with a wooden hammer and the other with hands. It can also be carried out by three people, two people playing and one person turning.