In 1803, President Thomas Jefferson authorized the purchase of the Louisiana Territory, a vast land that doubled the size of the United States. Jefferson soon a

When the United States won its independence from Great Britain, it also won new lands. Soon, the Louisiana Purchase doubled the country's size. These new lands

Lewis and Clark's Expedition from the Mississippi River to the Pacific Ocean was the first governmental exploration of the "Great West." The history of this und

When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowin

President Thomas Jefferson's Louisiana Purchase added about 828,000 square miles of unmapped, unknown land to the young United States. To explore and map this g