Have you ever wondered why it is considered polite to place your napkin in your lap at the dinner table? or, why it is socially unacceptable to stare at someone? have you ever wondered why being late is considered rude in some cultures and not others?

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."