Who did Jefferson send to explored these new land?

President Thomas Jefferson sent Meriwether Lewis and William Clark to explore the newly acquired lands of the Louisiana Purchase. Their expedition, known as the Lewis and Clark Expedition, took place from 1804 to 1806 and aimed to map the territory, establish trade with Native American tribes, and search for a northwest passage to the Pacific Ocean. The journey significantly contributed to the United States' understanding of its western territories and resources.