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Diego Garcia

(Encyclopedia) Diego Garcia, coral island, 11 sq mi (28 sq km). Indian Ocean, largest island of the Chagos Archipelago, SW of Sri Lanka. Part of the British Indian Ocean Territory, the island was…

Gulf Stream

(Encyclopedia) Gulf Stream, warm ocean current of the N Atlantic Ocean, off E North America. It was first described (1513) by Spanish explorer Ponce de León. The Gulf Stream originates in the Gulf of…

Continental Drift and Plate-Tectonics Theory

Source: U.S. Dept. of the Interior, Geological Survey According to the theory of continental drift, the world was made up of a single continent through most of geologic time. That continent…

John Gorham PALFREY, Congress, MA (1796-1881)

PALFREY, John Gorham, a Representative from Massachusetts; born in Boston, Mass., May 2, 1796; completed preparatory studies in Phillips Exeter Academy, Exeter, N.H., and was graduated from…

The Continental Divide

The Continental Divide is a ridge of high ground that runs irregularly north and south through the Rocky Mountains and separates eastward-flowing from westward-flowing streams. The waters that…

Guardia, Tomás

(Encyclopedia) Guardia, TomásGuardia, Tomástōmäsˈ gwärˈdēä [key], 1832–82, president of Costa Rica. An army general, he led a revolt that eventually placed him in control and enabled him to rule the…

Japan, Sea of

(Encyclopedia) Japan, Sea of, or East Sea, enclosed arm of the Pacific Ocean, c.405,000 sq mi (1,048,950 sq km), located between Japan and the Asian mainland, connecting with the East China Sea, the…

Okhotsk, Sea of

(Encyclopedia) Okhotsk, Sea ofOkhotsk, Sea ofōkŏtskˈ [key], Rus. Okhotskoye More, 590,000 sq mi (1,528,100 sq km), northwest arm of the Pacific Ocean, W of the Kamchatka peninsula and the Kuril…

Tromelin Island

(Encyclopedia) Tromelin IslandTromelin IslandtrōmlăNˈ [key], c.1 sq mi (2.6 sq km), in the Indian Ocean c.260 mi (420 km) E of Madagascar, part of the Scattered Islands district with the French…

Mackenzie

(Encyclopedia) Mackenzie, river, c.1,120 mi (1,800 km) long, issuing from Great Slave Lake, Northwest Territories, Canada, and flowing generally NW to the Arctic Ocean through a great delta. Between…