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airship

(Encyclopedia)airship, an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola accommodating pa...

Taft, William Howard

(Encyclopedia)Taft, William Howard, 1857–1930, 27th President of the United States (1909–13) and 10th chief justice of the United States (1921–30), b. Cincinnati. Taft retired from public life and taught ...

Wittelsbach

(Encyclopedia)Wittelsbach vĭˈtəlsbäkh [key], German dynasty that ruled Bavaria from 1180 until 1918. The family takes its name from the ancestral castle of Wittelsbach in Upper Bavaria. In 1180 Holy Roman Emper...

Frankfurt

(Encyclopedia)Frankfurt äm mīn [key], city (2021 pop. 841,795), Hesse, central Germany, a port on the Mai...

opium

(Encyclopedia)opium, substance derived by collecting and drying the milky juice in the unripe seed pods of the opium poppy, Papaver somniferum. Opium varies in color from yellow to dark brown and has a characterist...

knight

(Encyclopedia)knight, in ancient and medieval history, a noble who did military service as a mounted warrior. As the feudal system disintegrated, knight service was with growing frequency commuted into cash pay...

Burgundy

(Encyclopedia)Burgundy bo͝orgôˈnyə [key], historic region, E France. The name once applied to a large area embracing several kingdoms, a free county (see Franche-Comté), and a duchy. The administrative region ...

fern

(Encyclopedia)CE5 Life cycle of a fern fern, any plant of the division Polypodiophyta. Fern species, numbering several thousand, are found throughout the world but are especially abundant in tropical rain fores...

mountain climbing

(Encyclopedia)mountain climbing, the practice of climbing to elevated points for sport, pleasure, or research. Also called mountaineering, it is practiced throughout the world. Many mountain climbing clubs have...

Bohemia

(Encyclopedia)Bohemia, Czech Čechy, historic region (20,368 sq mi/52,753 sq km) and former kingdom, in W and central Czech Republic. Bohemia is bounded by Austria in the southeast, by Germany in the west and north...