Early North Americans migrated across the land bridge from Asia during the Ice Age mostly likely due to a food/resource shortage
It was a way for the sharecroppers to make some money, but they are always underpaid, and don't make enough to buy what they need, and only just barely scrape by. This makes the job as a sharecropper seem like their only choice.
East Germany and Czechoslovakia
temival ofnatives frin their land's over 16000 were forced off