(Encyclopedia) Pleistocene epochPleistocene epochplīˈstəsēn [key], 6th epoch of the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table). According to a…
The National Women's Hall of Fame is the only national membership organization that honors and celebrates the achievements of American women. Founded in 1969 in Seneca Falls, New York,…
At least 12,000 years ago According to a theory accepted by most anthropologists, the first women arrive in North America via the Bering land bridge from Asia.At least 2,000 years ago Women play…
(Encyclopedia) copper, metallic chemical element; symbol Cu [Lat. cuprum=copper]; at. no. 29; at. wt. 63.546; m.p. 1,083.4℃; b.p. 2,567℃; sp. gr. 8.96 at 20℃; valence +1 or +2. Copper and some of its…
(Encyclopedia) wool, fiber made from the fleece of the domestic sheep.
In the United States, by the Wool Products Labeling Act of 1939, the term wool may be applied only to fabrics made…
(Encyclopedia) collective farm, an agricultural production unit including a number of farm households or villages working together under state control. The description of the collective farm has…
