The size of the U.S. doubled this day, April 30, 1803, with the Louisiana Purchase. Nearly a million acres, at less than 3 cents an acre, it was the greatest land bargain in history. How did it happen? Napoleon Bonaparte needed money quickly for his military campaigns. Therefore, he sold all the land west of the Mississippi for just $15 million. Napoleon, who fought in Europe, Egypt and Russia, wrote later in life: "Alexander, Caesar, Charlemagne and myself founded empires ... upon force! But Jesus Christ founded His upon love; and at this hour millions of men would die for Him."