How did american migration westward resemble imperialism ?

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.

Abill receives a number, a title, a short summary and is entered into the house journal, all of this is called:

How does a free enterprise economy's freedom of producers provide benefits for individual consumers