Section 1-5 Click the mouse button or press the Space Bar to display the information. Rivalry in the Northwest In the early 1800s, four nations claimed.
Chapter 12 The New Territories and War with Mexico.
EXPANSIONISM 4. Movement to the Far West ► American settlement reaches Pacific in 1830s and 1840s ► Settlement encroaches on lands claimed by Mexico and.
The Spirit of Young America. Territorial Expansion by the Mid-Nineteenth Century.
Maine. Territorial Expansion by Mid-19 th CenturyCanada In 1839, fighting broke out between Maine & Canada over the disputed Maine border Webster-Ashburton.