What is low-grade fever? A fever is an increase in the body temperature above normal. A low-grade fever is a mild elevation of the temperature above normal. Your temperature measurements fluctuate through the day and vary depending upon the site of measurement.
The Kingdom of France controlled the Louisiana territory from 1699 until it was ceded to Spain in 1762. Napoleon in 1800, hoping to re-establish an empire in North America, regained ownership of Louisiana.
The U.S. paid $15 million for the Louisiana Purchase, and Napoleon gave up his empire in North America. The U.S. gained control of Mississippi trade route and doubled its size; A purchase that Napolean Bonaporte offered Thomas Jefferson and it doubled the size of the U.S.