In overseas countries, some people say that sake originated from the rice wine which was made around the Yangtze River in China, where rice cropping was begun around 4800 B.C., and exported to Japan.
日本国外には、中国大陸長江流域に紀元前4800年ごろ稲作が始まり、ここで造られた米酒が日本に輸出されたのが日本酒の起源とする説もある。