Question: When did the united states purchase the louisiana territory?

context: The Louisiana Purchase Treaty was signed on April 30, 1803, by Robert Livingston, James Monroe, and François Barbé-Marbois at the Hôtel Tubeuf in Paris. Jefferson announced the treaty to the American people on July 4. After the signing Livingston made this famous statement, "We have lived long, but this is the noblest work of our whole lives... From this day the United States take their place among the powers of the first rank."
question: When was the Louisiana Purchase Treaty signed?
short_answers: April 30, 1803
context: On the following day, October 21, 1803, the Senate authorized Jefferson to take possession of the territory and establish a temporary military government. In legislation enacted on October 31, Congress made temporary provisions for local civil government to continue as it had under French and Spanish rule and authorized the President to use military forces to maintain order. Plans were also set forth for several missions to explore and chart the territory, the most famous being the Lewis and Clark Expedition.
question: When was jefferson authorized to take possession of the Louisiana territory?
short_answers: October 21, 1803

Answer: The United States, under President Thomas Jefferson, acquired the Louisiana territory from France in 1803 through the Lousiana Purchase, with the treaty signing and taking of possession on different dates. The Louisiana Purchase Treaty was signed on April 30, 1803, by Robert Livingston, James Monroe, and François Barbé-Marbois. Later in the year, on October 21, 1803, the Senate authorized Jefferson to take possession of the Louisiana territory and establish a temporary military government.