The Lewis and Clark Expedition was a result of the Louisiana Purchase. Thomas Jefferson, the president of the United States in the early 1800s, bought this territory from the French in 1803. It was a huge piece of land that Jefferson wanted to get explored. Thus he planned the first exploration by the United States government of the Northwestern Wilderness. To lead this expedition into the wilderness, Jefferson appointed Meriwether Lewis, who was his personal secretary. Lewis picked William Clark as his co-leader for the expedition, which came to be known as the Lewis and Clark Expedition. This expedition lasted from May 1804 to September 1806.…