Describe how the Louisiana Purchase, War of 1812, and the Monroe Doctrine helped to establish American Nationalism. We all work as a unity of one to become nation. There are three events that help us. They are Purchase, War of 1812, and the Monroe Doctrine. In the 1800s we all experiencing our growth from sectional differences which led in Civil Rights. Our nation out grew between the Great Britain and the France which led us to another win against the British and the get our land back.

LOUISIANA PURCHASE New France was part of Louisiana at the time. But Spain had rule the region but still welcoming the American merchants and the farmers. New Orleans had a key port which had a important outlet for the Untied States farmer