Some kinds of nails, such as those used for defending the soles of coarse shoes, called hobnails, require a particular form of the head, which is made by the stroke of a die. ↗
I’ve often wondered why the Protestant Reformation took place in Germany, rather than in Poland. Then I realize that Luther had to nail his 95 theses to the church door, and the Poles didn’t know how to operate a hammer. ↗