title_body: Is there any documentation on the origins of the Sake Bomb?
upvoted_answer: Take a look at this article: WHERE THE HELL THE SAKE BOMB CAME FROM: A LESSON IN IRONY
  
  From the article:
  
  
    A few sources suggest that sake bombs were actually invented by American soldiers occupying Japan in the years following World War II.
  
  
  The "sources" mentioned are this additional article at Los Angeles Magazine: An Ode to the Sake Bomb