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Manifest Destiny
Manifest Destiny was the 19th century American belief that the United States was destined to expand across the continent. It was used by Democrat-Republicans in the 1840s to justify the war with Mexico; the concept was denounced by Whigs, and fell into disuse after the mid-19th century.Advocates of Manifest Destiny believed that expansion was not only wise but that it was readily...
Timeline of Events
1845
12.2.1845
Manifest Destiny: US President James K. Polk announces to Congress that the United States should aggressively expand into the West.
12.29.1845
According with International Boundary delimitation, U.S.A annexes the Mexican state of Texas, following the Manifest Destiny doctrine. For others, the Republic of Texas is admitted as the 28th U.S. state.
1867
10.21.1867
Manifest Destiny: Medicine Lodge Treaty