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 summary: The United States bought 828,000 square miles of land from France in 1803. The French controlled this region from 1699 until 1762 when it became Spanish property because France gave it to Spain as a present, since they were allies. But under Napoleon Bonaparte, France revived the aspirations to build an empire in North America so the territory was taken back in 1800.