"The Valiant Little Tailor" is a German fairy tale collected by the Brothers Grimm, tale number 20. Joseph Jacobs collected another variant "A Dozen at One Blow" in European Folk and Fairy Tales.
A tailor is preparing to eat some jam, but when flies settle on it, he kills seven of them with one blow of his hand. He makes a belt describing the deed, reading "Seven at One Blow". Inspired, he sets ou...