Which is not a way in which US boundaries changed between 1800 and 1821?

Are there any answer choices

but heres is Explanation:if u want

What was not a way in which US boundaries changed between 1800 and 1821 was that "New England states lost territory as people moved west."

That never happened

What truly happened that doubled the size of the United States territory was the Lousiana Purchase in 1803. President Thomas Jefferson ordered the purchase of the territory that belonged to France. President Jefferson sent James Madison to Paris to accelerate negotiations and in April 1803, France accepted the prize of $11,250,000 to close the de deal.

utilized the penal colony