Louisiana Purchase - Thomas Jefferson Achievements - One Minute History

Following the French and Indian War, France ceded the Louisiana Territory to Spain. In 1801, Spain returned it to France, causing American concern over Napoleon's intentions. President Jefferson instructed Robert Livingston to negotiate for New Orleans. Instead, France offered the entire Louisiana Territory, which the US purchased for $15 million in 1803, doubling its size and marking a significant achievement for Jefferson.

How did the Louisiana Purchase affect the size of the United States?

What is considered one of Thomas Jefferson's notable achievements as President?