USA HISTORY

Detailed explanation-1: -The purchase doubled the size of the United States, greatly strengthened the country materially and strategically, provided a powerful impetus to westward expansion, and confirmed the doctrine of implied powers of the federal Constitution.

Detailed explanation-2: -The Louisiana Purchase was the first major cession of land in a long series of expansions that span the 19th century. Within 50 years, the present-day borders of the contiguous United States would be solidified with the Gadsden Purchase.

Detailed explanation-3: -The lands acquired stretched from the Mississippi River to the Rocky Mountains and from the Gulf of Mexico to the Canadian border. Thirteen states were carved from the Louisiana Territory. The Louisiana Purchase nearly doubled the size of the United States, making it one of the largest nations in the world.

Detailed explanation-4: -American diplomats Robert Livingston and James Monroe purchased the Louisiana Territory from the French for $15 million dollars, or four cents an acre, in 1803. In late April 1803, with the stroke of a pen and the exchange of just $15 million, the United States nearly doubled in size.