Answer:
Colonies wanted to establish their presence in the New World, Colonies would keep other European countries from trying to claim land and Colonies would keep problems with American Indians in the area to a minimum.
Because so they can avoid opinions and get the facts. Also because depending on the origin of the historian, he may have a prerequisite <span>feelings towards a culture or a nation.</span>
A because they didn't want the revolution to spread to their country
There were many reasons for the Westward Expansion that conducted masses of Americans in the 19th century to the West. The most important were:
1) JOB OPPORTUNITIES.
2) MORE LAND.
3) MORE FARMING POSSIBILITIES.
4) FASTER TRANSPORTATION.
5) FREEDOM FOR RUNAWAY SLAVES.