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you
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between 1801 and 1861 vassal territories
were claimed for a new nation let's
investigate this territory expansion and
how change the political map of the
United States after the Revolutionary
War the Mississippi River forms the
western boundary of the new nation the
lands between the Appalachian Mountains
and the Mississippi became the new
frontier thousands of settlers called
pioneers made the dangerous journey over
the mountains and hopes of finding good
farmland and prosperous future for their
families by the 1800 how the cellars
begins to look west across the
Mississippi to the vast lands behind
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there are in Thomas Jefferson presidency
the United States purchase a huge area
of land from France for fifteen million
this territory was called Louisiana and
over 800,000 square miles of land
stretching from the Mississippi River
west to the Rocky Mountains and from
Canada South to the busy Seaport of New
Orleans the Louisiana Purchase double
the size of the United States overnight
in order to learn more about this new
land
president Jefferson hired Meriwether
Lewis and William Clark to lead an
expedition of discovery the Lewis and
Clark expedition explored the Louisiana
Purchase from the muddy waters of the
Mississippi River to the crashing waves
of the Pacific Ocean over two years
later Lewis and Clark returned with
carefully drawn maps and detailed report
of the land and its plants animals and
people
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during the presidency of James Monroe
another major territory expansion took
place just south of the state of Georgia
was a Spanish territory in Florida
President Monroe became concerned
because Indians living in Florida had
crossed the border to Georgia and
attacked a US citizen Spain was not
keeping the peace along the border as I
promised my role offers branding choice
either they could send soldiers to keep
up in the territory or they could give
the territory to the United States
because of growing problems with the
colonies and stuff South America the
king of Spain agreed to give Florida to
the United States in 1819 the Florida
treaty was signed
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as the explanation of Louisiana Purchase
continued
more and more Americans begin to settle
in the southwestern territory owned by
Mexico before long the American settlers
who far outnumber those Meck from Mexico
for for every one independent from
Mexico the Republic of Texas remain
independent to 1845 when became Texas
the 20th state to join the United States
of America
the next u.s. territory expansion
involves the Oregon Territory this land
including present-day Oregon Washington
Idaho and portions of my tent and my own
for years the United States and Great
Britain had shared ownership of their
territory but this soon will change as
more and more American settlers arrived
and covered wagons the United States and
former a pretty that joint ownership
will no longer be considered diplomatic
discussions began in the 1846 a treaty
was started at the ownership of the
territory to the United States
so after US offered the Texas state hood
relations with Mexico worsened
four months later skirmishes or Fran
along the Rio Grande River led to war
with Mexico during the nearly two years
of war that followed American sellers in
the territory of California revolted
against Mexican rule within months a
treaty was signed and American troops
took possession of the California it was
the vast Southwest territory
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with the advancements and transportation
the Oregon Trail and the Santa Fe Trail
with two mentions that partners travel
in order to go Northwest and Southwest
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thanks for watching