Why was the lewis and clark expedition important to thomas Jefferson

President Thomas Jefferson commissioned the expedition shortly after the Louisiana Purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an American presence in this territory before Britain and other European powers

Explanation:

answer; the basal forebrain;

уєѕ нє ℓσѕт ¢σитяσℓ σf нιѕ ρυριℓѕ