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.
Louisiana Purchase. 1803 - The U.S. purchased the land from the Mississippi River to the Rocky Mountains from Napoleon for $15 million. Jefferson was interested in the territory because it would give the U.S. the Mississippi River and New Orleans (both were valuable for trade and shipping) and also room to expand.