People came for a variety of reasons, including economy, adventure, health, and philosophical notions such as Manifest Destiny. During the early 1830s affluence, Americans gambled heavily on the land, resulting in the Panic of 1837 and the following downturn.
The man who sold the Eiffel tower twice was a con artist named Victor Lustig.
Americans held the balance of power between Appalachian Mountains and the Mississippi River after the American Revolution.
US and Great Britain signed the Treaty of Paris in 1783 to end the American Revolutionary War. The treaty set the boundaries between US and Great Britain territories, including Great Britain's concession of the trans-Appalachian west region to the US.