KnowraLewis and Clark ExpeditionLinked fromLinked fromThe 29 pages that link to Lewis and Clark Expedition, each with the reason it gives.All 29Broader topic 4Related 22Narrower topic 2Compared with 1Thomas JeffersonBroader topic: Jefferson commissioned it to survey the acquired territory and seek routes to the Pacific.Louisiana PurchaseBroader topic: The expedition surveyed routes and gathered information about lands acquired in the purchase.Westward expansionBroader topic: It surveyed routes and gathered information that supported U.S. claims and migration.Meriwether LewisBroader topic: It was the defining undertaking of Lewis’s public life.