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Louisiana Purchase
Previously owned by - France
They gained the land by - Purchase
This benefited - Many people who moved west for farming and fur-trapping. Lewis and Clark mapped out.
Oregon Territory
Previously owned by - Britain
They gained the land by - Treaty
This benefited -Gave the US control of the northwest land, below Canada. Many opportunities for fur-trapping.
Texas Annexation
Previously owned by - Mexico
They gained the land by - War
This benefited - Texas gained independence and added another slave state to the US. “Lone Star state” because it took long to annex.
Spanish Cession
(Florida)
Previously owned by - Spain
They gained the land by - Treaty (Adam-Onis)
This benefited - Gave control of Florida to the US.
Mexican Cession
Previously owned by - Mexico
They gained the land by - War
This benefited - The US gained most of our territory in the Southwest, including California (gold).
Gadsen Purchase
Previously owned by - Mexico
They gained the land by - Purchase
This benefited - Allowed for the building of railroad in the Southwest (California).