Why did it take people so long to move west?

The discovery of gold in California helped to speed development of the western United States. The discovery of gold had already started a great movement to California. This week in our series, Robert Bostic and Leo Scully tell about the gold rush and the important part cowboys played in settling the West.

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

(1)representation based on state population (2)all states have equal representation apex