During world war I the word "hamberger" was frowned upon for a time. The United states was at war with Germany. Anti-German feeling run high in America. Beef patties were sometime called "salisberger's old name came back into use and bergers were soon sold by the thousands.
It was after world war II that the berger did more travelling.Many Americans went to visit or live in Europe and other parts of the world.Ther introduced their own wellliked dish to people all round the world. The hamberger has really come a long way! It's a dish that's been eaten relish.