The largest state (in area) of the United States, Alaska was admitted to the union as the 49th state in 1959, and lies at the extreme northwest of the North
American naval officer, b. South Kingstown, R.I.; brother of Oliver Hazard Perry. Appointed a midshipman in 1809, he first served under his brother on the Revenge and then was aide to Commodore John Rodgers on the President, which defeated the British
American imperialism and the Spanish-American War help the United States to build an empire. View the video below, and answer each of the questions using complete sentences.
Monroe Doctrine, principle of American foreign policy enunciated in President James Monroe's message to Congress, Dec. 2, 1823. It initially called for an end to European intervention in the Americas, but it was later extended to justify U.S.
Panama Canal, waterway across the Isthmus of Panama, connecting the Atlantic (by way of the Caribbean Sea) and Pacific oceans, built by the United States (1904–14, on territory leased from the republic of Panama) and expanded by Pamana (2007–16).
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