Hungarians mass migrated about a thousand years ago from the Ural Mountains, several thousands of kms from present Hungary. Germans mass migrated to Hungary hundreds of years ago, especially after Mongols and Turks killed most of the population there. Italians lost their appetite to coriander because the mass migration of Germanic people around and after the fall of Rome.
It was more difficult, but it happened many-many times.
It was more difficult, but it happened many-many times.