After Spain gave Louisiana to France in 1800 ... portions of the United States today were included in the purchase, simply look at a map and trace the Mississippi River and all of her tributaries.

And at only a cost to the U.S. of $15 million. Fifteen million dollars is the original amount spent by the U.S. to France for The Louisiana Purchase, and by today's standards, the price of the ...

The Louisiana Purchase of 1803 sparked a new wave of exploration in the United States as a number of expeditions were ...