|
gptkb:United_States_acquisition_of_Alaska
|
approximately 586,412 square miles
|
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gptkb:Gadsden_Purchase_Treaty
|
29,670 square miles
|
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gptkb:Walking_Purchase
|
approximately 1,200,000 acres
|
|
gptkb:Purchase_of_Louisiana
|
828,000 square miles
|
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gptkb:Alaska_Purchase,_1867
|
586,412 square miles
|
|
gptkb:Alaska_Purchase
|
586,412 square miles
|
|
gptkb:Purchase_of_Alaska
|
586,412 square miles
|
|
gptkb:United_States_acquisition_of_Louisiana
|
828,000 square miles
|
|
gptkb:purchase_of_Alaska
|
586,412 square miles
|
|
gptkb:Louisiana_Purchase
|
828,000 square miles
|