Documenting United States History

214 ChaPTer 9 | expansionism: part 1 | period Four 180 0 –1848 ToPIC^ I^ |^ expansion, Compromise, and Conflict^215

Document 9.1 Map of the Louisiana Purchase

1805

Napoleon Bonaparte surprised Thomas Jefferson’s administration with an offer to sell the

Louisiana Territory to the United States in 1803. Acquisition of the territory doubled the size

of the United States and opened the regions between the Mississippi River and the Rocky

Mountains to American settlement.

Expansion, Compromise, and Conflict

toPic i

0 250 500 kilometers

0 250 500 miles

0 250 500 kilometers

0 250 500 miles

PACIFIC

O CEAN

ATLANTIC

OCEAN

BRITISH CANADA

UNITED

STA TES

1783

LOUISIANA

PURCHASE

1803

NEW SPAIN

BRITISH CANADA

UNITED

STA TES

1783

LOUISIANA

PURCHASE

1803

NEW SPAIN

Disputed

Acquired by the US from Spain,

1810–1819

N

S

E

W

P raCTICIng historical Thinking

Identify: Describe the boundaries and terrain of the Louisiana Purchase.

Analyze: How might doubling the size of the United States shape Americans’ per-

ceptions of their nation’s Manifest Destiny (see Chapter 8)?

Evaluate: To what extent was the Louisiana Purchase a continuation of European

efforts to colonize the New World?

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