question about the louisiana purchase??

Question

what is a good website that can tell me the area in square miles of the U.S. before the Luoisiana purchase??

Answer 1

Here is one I found: http://www.globalpolicy.org/empire/history/1979/79westwardexp.htm

It appears that the U.S. was approximately 800,000 square miles prior to the Louisiana Purchase. The Purchase more than doubled the size of the United States (827,000 square miles).

Answer 2

the web site below is one of the better ones I am aware of