David BlitzerNew York, New York, United StatesAlvise GuarientoToronto, Ontario, CanadaRobert M. SadeCharleston, South Carolina, United States In 1803, Meriwether Lewis and William Clark, with the backing of President Jefferson and the federal government of the newly created United States, set out to find the coveted Northwest Passage, an all-water route through North America. The primary…