Expedition {Ans: a trip taken to explore and discover new territory.}Louisiana Purchase (1803) {Ans: The deal with France that doubled the size of the United States costing only $15 million for 800,000 square miles. Averaged 4 cents per acre.}New Orleans {Ans: The port of the Gulf of Mexico that Jefferson wanted access to}Thomas Jefferson {Ans: 3rd President of the United States who bought Louisiana from the French because we needed the port of New Orleans.}Fort Mandan {Ans: The location of Lewis and Clark's winter camp in present day South Dakota}Missouri River {Ans: River that begins in the Rocky Mountains and flows to the Mississippi; Lewis and Clark explored it.}Lewis and Clark {Ans: explorers who were chosen to explore Louisiana territory.}Napoleon Bonaparte {Ans: Ruler of France (dictator) who needed to sell Louisiana to fight two wars.}St. Louis {Ans: The city in Missouri from which Lewis and Clark began their expedition}James Monroe {Ans: a representative that Thomas Jefferson sent to France to acquire the port of New Orleans, LA.}Corps of Discovery {Ans: the name of the exploration team that Lewis and Clark led, sent by Thomas Jefferson}