Causes
Increase in population caused the need for more land
Louisiana Purchase
Heightened tension between the _____ and ______
White settlers and Native Americans
Louisiana purchase
5mil-25mil people
1805
Mexico suspended U.S. immigration into Texas in 1830
Texas won independence from Mexico in 1836
Texas Independance
______ and ______ fought over whether or not the new states should be slave states or free states
North and South
Texas gained independence from Mexico
1836
America and Canada fought over where the Canadian border started
Polk agreed to split it along the 49th parallel
Oregon Territory
Inflamed tensions between abolitionists and slaveholders led to this war
Civil War
Texas admitted to union as a US State
1845