Westward Expansion:

"Go west young man, go west, and grow up with the land!" -John Soule

Often quoted by fellow journalist Horace Greely

Fact:

During the early 1800's, the United States gained new lands west of the Mississippi River. The largest was the vast Louisiana Purchased of 1803. The next year Meriweather Lewis and William Clark began exploring the Northern part of the US territory.