Talk:Japanese (Age of Empires III)/@comment-66.69.107.242-20180227145729/@comment-5157002-20180227191740

Yes, Buddhism.

"When Buddhism became widely accepted with the rise of the Soga clan, a taboo on the eating meat (especially mammals) began to be enforced, and became common practice, although wild game was still being taken by mountain people, and would be eaten by townspeople when the opportunity arose." source