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Manhattan, indigenous people of North America

(Encyclopedia)Manhattan mănhătˈən [key], indigenous people of North America of the Algonquian-Wakashan linguistic stock (see Native American languages). They were a small tribe of the Wappinger Confederacy. The...

Antarctic Circle

(Encyclopedia)Antarctic Circle, imaginary circle on the surface of the earth at 661⁄2°S lat., i.e., 231⁄2° north of the South Pole. It marks the southernmost point at which the sun can be seen at the winter s...

Arctic Circle

(Encyclopedia)Arctic Circle, imaginary circle on the surface of the earth at 661⁄2°N latitude, i.e., 231⁄2° south of the North Pole. It marks the northernmost point at which the sun can be seen at the winter ...

Mohave, indigenous people of North America

(Encyclopedia)Mohave mōhäˈvē [key], indigenous people of North America whose language belongs to the Yuman branch of the Hokan-Siouan linguistic stock (see Native American languages). In the mid-18th cent. they...

Bartlett, Robert Abram

(Encyclopedia)Bartlett, Robert Abram, 1875–1946, American arctic explorer, b. Brigus, near St. John's, N.L., Canada. He accompanied Robert E. Peary on the expeditions of 1897–98 and 1905–6, and in 1908–9 he...

hour circle

(Encyclopedia)hour circle, in astronomy, a secondary axis in the equatorial coordinate system. The hour circle of a celestial body is the great circle on the celestial sphere that passes through both the body and t...

ecliptic coordinate system

(Encyclopedia)ecliptic coordinate system, an astronomical coordinate system in which the principal coordinate axis is the ecliptic, the apparent path of the sun through the heavens. The ecliptic poles are the two p...

MacMillan, Donald Baxter

(Encyclopedia)MacMillan, Donald Baxter, 1874–1970, American arctic explorer, b. Provincetown, Mass., grad. Bowdoin College, 1898, and studied at Harvard. After a decade of teaching, he went on the expedition (190...

Yuma, indigenous people of North America

(Encyclopedia)Yuma yo͞oˈ mə [key], Native North Americans whose language belongs to the Yuman branch of the Hokan-Siouan linguistic stock (see Native American languages). Also known as the Quechan, they formerly...

Catawba, indigenous people of North America

(Encyclopedia)Catawba kətôˈbə [key], Native North Americans whose language belongs to the Siouan branch of the Hokan-Siouan linguistic stock (see Native American languages). They have for centuries occupied a r...