Geographers view the world by looking at the use of space on the earth and the interactions that take place there. In an essay, discuss the differences and similarities of the study of geography with the study
of history.

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

Argon, carbon-14, and carbon-12

Its in the national history museum and you can't se the original because its locked away in a vault 

The question to your answer is illinois amigo