Expeditions for US
Expansion
Lewis and Clark
Expedition
 Who were they?
 Meriwether
Lewis &
William Clark
 Two famous
explorers
 What was their
mission
 Explore
Remember!!!!
 Jefferson purchased the Louisiana Purchase from France
 Explorers were needed for this exploration
 Doubled the size of the US
Exploration 1803-1806
 Lewis and Clark were assigned to explore west of the
Mississippi River (Collected data about plants, people
and animals)
 Duration: 3 years
 GOALS for Jefferson:
 1. find a land route to Pacific Ocean and strengthen claims
to Oregon territory
 Gather information about Native Americans
Adams-Onis Treaty 1816
 Between Spain and US
 Spain ceded Florida to the US (settled a land dispute)
 Spain withdrew all claims of land in the West north of
the 42ns parallel.
Missouri Compromise1820
 What was it about:
 Southern states wanted slavery allowed in the new states.
Northern states disagreed!
 Missouri- declared a slave state
 Maine- declared a free state
 Made slavery in the Louisiana Territory north of
Missouri’s southern border
Monroe Doctrine
 President James Monroe stated that the European
countries would no longer be allowed to create new
colonies or interfere with independent nations in the
Western Hemisphere
 Influential on US foreign policy
Indian Removal Act
 Before the Trail of Tears
 Act that stated that the president could negotiate treaties
with Native Americans to relocate them to the areas west
of the Mississippi River
 94 treaties were signed with Native American tribes
Remember the Alamo
 Battle of the Alamo was an important battle in the Texas
War of Independence
 Leaders: James Bowie, William Travis and Davy
Crockett
 Fought against Mexican soldiers (Mexican-American
war)
 Texans lost at the Alamo, THIS LOSS encouraged the
remaining soldiers to continue fighting and eventually
gained the Texan independence at the Battle of San
Jacinto
Trail of Tears 1838
 Treaty of New Echota: Cherokee had to give up their
land east of the Mississippi
 1,000 mile route from Georgia to Oklahoma
 4000 Native Americans died (Disease, starvation, and
exposure)
Oregon Trail- 1840’s
 Thousands of Pioneers moved to Oregon
 Oregon Trail- 2000 miles
 This trail had many resources for survival of this route
1849- Gold Rush
 Gold was discovered at Sutter’s Mill in California
 In two years, 40,000 prospectors came to California
 Few found gold
Test Friday
 Make sure to know everything we covered
 Multiple Choice, Matching, and Essay
 STUDY STUDY STUDY
 ALL Powerpoints are on the website!