Answer:
A Native Americans had no languages of their own.
You dont. you keep it forever cause it’s worth it.
Roads were nothing more than dirt paths that were dry and dusty during the summer and muddy during the winter
-historylink101.com (Travel by Land in Ancient Greece)
Answer:1st Amendment, freedom of speech (though, religion, right, etc). Some acceptations are made if its dangerous for the union or sum I think but overall I believe that's the only reason.
The themes that played a major role in changing the world between 1450 and 1750 was that plants were being spread together with animals and diseases between the Americas and the rest of the world; mainly Europe. Especially famous are cases where European contact wiped out whole villages and tribes of native American people because they were unable to cope with the bacteria and viruses.