Answer :
Answer:
1. the purchase of Alaska from Russia
Explanation:
On March 30, 1867, the United States achieved an agreement to buy Alaska from Russia at a cost of $7.2 million. The Treaty with Russia was arranged and marked by Secretary of State William Seward and Russian Minister to the United States Edouard de Stoeckl. Commentators of the arrangement to buy Alaska called it "Seward's Folly" or "Seward's Icebox." Opposition to the buy of Alaska died down with the Klondike Gold Strike in 1896.