In 1803, Thomas Jefferson purchased about 828,000,000 square miles of land from France, which is also known as the Louisiana Purchase. After the purchase, more problems with land started to pop up, and treaties along with ordinances were put into place. For example, the Missouri Compromise threatened the balance of free and slave slates. To keep the peace Missouri was allowed to enter as a slave state but Maine had to enter as a non-slave state. The compromised proved that sectionalism was still growing, because the question of whether congress had the right to prohibit slavery in the territories had not been