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Original Colonies
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Treaty of 1783
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Red-River Cession
Florida Treaty
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Louisiana Purchase
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Oregon Treaty
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Mexican Cession
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Texas Annexation
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Gadsden Purchase
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Original Colonies
Treaty of 1783
Florida Treaty
Red-River Cession
Louisiana Purchase
Texas Annexation
Oregon Treaty
Mexican Cession
Gadsden Purchase
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Established by Great Britain
1607-1776
Originally divided into 13 separate
colonies
Fought the British for independence
Gained after the American Revolution
1776-1783
Territory included all lands east of
the Mississippi River except for
Spanish Territory
Included what would become the
Northwest Territories
Purchased from Spain in 1819
The Adams-Onis treaty allowed this
territory to become part of the U.S.
Was the last territory east of the
Mississippi River to be claimed before
1877
Purchased from France for $15
Million in 1803
Included the port of New Orleans
Was Explored by Lewis and Clark
This territory was once an
independent nation after gaining
independence from Mexico
Became part of the United States in
1845 through annexation
Anson Jones was the last President of
this territory before it became a part
of the United States
Became part of the United States in
1846
The treaty for this land divided it
between the United States and Great
Britain along the 49th Parallel
The United States now goes from the
Atlantic Ocean to the Pacific Ocean
Became part of the United States as
a result of a war with Mexico
(1846-1848)
The Treaty of Guadalupe Hidalgo
exchanged this territory for $15
million
This territory caused the Compromise
of 1850 and the debate over the
Wilmot Proviso
Became part of the United States in
1818
This land was acquired from Great
Britain and included land north of the
Louisiana Purchase
The northern border of this small
annexation was set at the 49th
parallel
This land became part of the United
States in 1853
This territory was purchased from
Mexico for $10 million
This land was acquired in order to
build a southern transcontinental
railroad
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