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collective farm

(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 varied with time and...

mine, in warfare

(Encyclopedia)mine, in warfare, term formerly applied to a system of tunnels dug under an army fortification and ending in a chamber where either explosives were placed to be detonated at a chosen moment or the sup...

Alexander II, czar of Russia

(Encyclopedia)Alexander II, 1818–81, czar of Russia (1855–81), son and successor of Nicholas I. He ascended the throne during the Crimean War (1853–56) and immediately set about negotiating a peace (see Paris...

Banda, Hastings Kamuzu

(Encyclopedia)Banda, Hastings Kamuzu kämo͞oˈzo͞o bänˈdə [key], 1902?–97, African political leader, president of Malawi (1966–94). A son of peasants, he received a medical degree in the United States and ...

W and Z particles

(Encyclopedia)W and Z particles, elementary particles that mediate, or carry, the fundamental force associated with weak interactions. The discovery of the W and Z particles at CERN near Geneva, Switzerland, in the...

Gad

(Encyclopedia)Gad, in the Bible, son of Jacob and Zilpah and eponymous founder of one of the 12 tribes of Israel. Its allotment was half of Gilead; this was the land best suited to the pastoral life, which Gad, lik...

Nuristan

(Encyclopedia)Nuristan no͝orĭstănˈ [key] [Persian,=land of light or the enlightened], region on the southern slopes of the Hindu Kush, NE Afghanistan, bordered on the E by Pakistan. Formerly called Kafiristan [...

Congo, river, Africa

(Encyclopedia)Congo zīˈēr, zäērˈ [key], great river of equatorial Africa, c.2,720 mi (4,380 km) long, formed by the waters of the Lualaba River and its tributary, the Luvua River, and flowing generally N and ...

Homestead Act

(Encyclopedia)Homestead Act, 1862, passed by the U.S. Congress. It provided for the transfer of 160 acres (65 hectares) of unoccupied public land to each homesteader on payment of a nominal fee after five years of ...

Mufulira

(Encyclopedia)Mufulira mo͞ofo͞olēˈrä [key], city (1990 pop. 152,944), N central Zambia, on the border with the Congo. It is a copper-mining center, located in the Copperbelt. ...