Body: People who study "The history of the Purchase of Louisiana, 1803" investigate how the United States acquired the territory from the French government.
Some subfields in "The history of the Purchase of Louisiana, 1803" include exploration, sale of the territory, financing.
Some reasons we look at "The history of the Purchase of Louisiana, 1803" include understand the state's role in the formation of America.
Ken Burns, Gwendolyn Midlo Hall are a few specialists of "The history of the Purchase of Louisiana, 1803".