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Ida B. Wells-Barnett

journalist, activistBorn: 1862Birthplace: Holly Springs, Miss. Her parents were slaves when Wells was born and died from yellow fever when she was 14. By 1891 Wells was an outspoken, young free…

Why do leaves change color in the fall?

Why do leaves change color in the fall? One of the sure signs of fall (besides the beginning of a new school year) is the change in color of leaves from green to bright yellow, orange and red.…

Michael Dorris

anthropologist, writerBorn: 1/30/1945Birthplace: Louisville, Kentucky Noted as the founder (1972) of the Native American Studies program at Dartmouth College, he was also known for his award-…

Roy Rogers

(Leonard Frank Sly)actor, singerBorn: 11/5/1911Birthplace: Cincinnati, Ohio Actor and singer who starred in more than 80 Westerns, earning the moniker “King of the Cowboys.” He signed with Republic…

Why does hair turn gray?

The Question: What causes gray hairs to sprout as a person grows older? The Answer: Cells in hair follicles called melanocytes generate melanin…

apatite

(Encyclopedia) apatiteapatiteăpˈətīt [key], mineral, a phosphate of calcium containing chlorine or fluorine, or both, that is transparent to opaque in shades of green, brown, yellow, white, red, and…

oxpecker

(Encyclopedia) oxpecker, common name for an African starling of the genus Buphagus. Also known as tickbirds, oxpeckers have very short legs and sharp claws, which aid them in perching on the backs of…

aqua regia

(Encyclopedia) aqua regiaaqua regiaäkˈwə [key]aqua regiarēˈjēə [key] [Lat.,=royal water], corrosive, fuming yellow liquid prepared by mixing one volume of concentrated nitric acid with three to four…

yellowwood

(Encyclopedia) yellowwood, common name for any species of the genus Cladrastis, leguminous trees of the family Leguminosae (pulse family). Three of the four species are native to China and Japan. The…