Transcript Westward Expansion

Westward Expansion
And American Diversity
Lewis and Clark
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1804-1806
1st Overland Expedition
Meriwether Lewis and William Clark
The Goal was to gain an accurate sense of the
resources being exchanged in the Louisiana
Purchase.
What was Achieved?
• Better sense of terrain West of Mississippi
• Natural Resources
• Established Native American Relations
Manifest Destiny 1812-1860
• 19th century American belief that the United
States was destined to expand across the
North American continent, from the Atlantic
seaboard to the Pacific Ocean.
Effects of Manifest Destiny
• Continentalism
• All of Oregon
– The Anglo-American Convention of 1818 had
provided for the joint occupation of the Oregon
Country, and thousands of Americans migrated
there in the 1840s over the Oregon Trail
• Mexico and Texas
– In 1836, the Republic of Texas declared
independence from Mexico and, after the Texas
Revolution, sought to join the United States as a
new state.
Oregon Trail 1841-1869
• Main overland migration routes leading from
locations on the Missouri River to the Oregon
Country
• Great Migration of 1843
• Mormon Migration
Santa Fe Trail
• 19th-century transportation route through
central North America that connected
Missouri with Santa Fe, New Mexico.
• A vital commercial and military highway until
the introduction of the railroad to Santa Fe in
1880
• At first an international trade route between
the United States and Mexico, it was the 1846
U.S. invasion route of New Mexico during the
Mexican–American War
California Gold Rush-1849
• Gold discovered at Sutter’s Mill
• 300,000 people from the U.S. and abroad
Effects
• Created Government and Commerce
• Native Americans became victims of
starvation and disease
• Anti-Foreigner laws were passed
• World wide economic stimulation
Mexico-U.S. War 1846
• The Mexican–American War was an armed
conflict between the United States and
Mexico from 1846 to 1848 in the wake of the
1845 U.S. annexation of Texas