In 1806 Lewis and Clark got back from their Expedition
In 1803 Thomas Jefferson bought the Louisiana Purchase and it doubled the size of the United States
In 1803 Lewis and Clark were hired to go and explore the Louisiana purchase by Thomas Jefferson
The Lewis and Clark Expedition from May 1804 to September 1806, also known as the Corps of Discovery Expedition, was the first American expedition to cross what is now the western portion of the United States. It began near St. Louis, made its way westward, and passed through the continental divide to reach the Pacific ...
Jefferson used the networks created by the treaties to further the program of gradual "civilization." His Federalists predecessors had begun this program, but it was completely in keeping with Jefferson's Enlightenment thinking. Through treaties and commerce, Jefferson hoped to continue to get Native Americans to adopt European agricultural practices, shift to a sedentary way of life, and free up hunting grounds for further white settlement.