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Permian period
(Encyclopedia)Permian period pûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290 million years ago. Many ma...Holy Roman Emperors (table)
(Encyclopedia) HOLY ROMAN EMPERORS(including dates of reign) Saxon dynasty Salian or Franconian dynasty Hohenstaufen dynasty and rivals Interregnum, 1254–73 Hapsburg, Luxemburg, and other dynasties ...browntail moth
(Encyclopedia)browntail moth, common name for a moth, Nygmia phaeorrhoea, of the tussock moth family. It is a serious pest of forest and shade trees, especially oak. It was introduced from Europe about the same tim...barrel organ
(Encyclopedia)barrel organ, mechanical musical instrument requiring nothing but the regular rotary motion of a handle to keep it going. It probably originated at the beginning of the 18th cent., and was once used e...yellow fever
(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...Great Sand Dunes National Park and Preserve
(Encyclopedia)Great Sand Dunes National Park and Preserve, 132.4 sq mi (343 sq km), in the San Luis Valley of S Colorado; est. as a national monument 1932, designated a national park 2004. Lying in an area of high ...Wrangell–Saint Elias National Park and Preserve
(Encyclopedia)Wrangell–Saint Elias National Park and Preserve, at the convergence of the Chugach, Wrangell, and St. Elias mts., SW Alaska. The park (8,323,618 acres/3,369,856 hectares) contains Mt. Saint Elias (1...toothfish
(Encyclopedia)toothfish, common name for a genus (Dissostichus) of deep-water marine ray-finned fishes found in waters off S South America to Antarctica. The Patagonian toothfish, D. eleginoides, is the northerly o...Hofmann, August Wilhelm von
(Encyclopedia)Hofmann, August Wilhelm von ouˈgo͝ost vĭlˈhĕlm fən hôfˈmän [key], 1818–92, German organic chemist. He was professor at the Univ. of Berlin from 1865 and was a founder (1868) of the German C...restaurant
(Encyclopedia)restaurant, a commerical establishment where meals can be bought and eaten. In the 16th cent. English inns and taverns began to serve one meal a day at a fixed time and price, at a common table, and u...Browse by Subject
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