As part of his Reconstruction plan, President Johnson thought the South should be treated relatively fairly, compared to how the radicals in Congress thought they should be treated.
<span>President Thomas </span>Jefferson<span> commissioned the Corps of Discovery Expedition (1804-06), led by Meriwether Lewis and William Clark, to explore the territory acquired in the </span>Louisiana Purchase<span>, among other objectives. In 1801, Spain signed a secret treaty with France to return </span>Louisiana<span> Territory to France.</span>