Columbia Encyclopedia

Search results

221 results found

Green Revolution

(Encyclopedia)Green Revolution, term referring mainly to dramatic increases in cereal-grain yields in many developing countries beginning in the late 1960s, due largely to use of genetically improved varieties. Beg...

Gandhara

(Encyclopedia)Gandhara gəndäˈrə [key], historic region of India, now in NW Pakistan. Situated astride the middle Indus River, the region had Taxila and Peshawar as its chief cities. It was originally a province...

Lucknow

(Encyclopedia)Lucknow or Lakhnau both: lŭkˈnou [key], city (1991 pop. 1,669,204), capital of Uttar Pradesh state, N central India, on the Gomati River. An educational and cultural center, it has varied industries...

Assam

(Encyclopedia)Assam ăsămˈ [key], state (2001 provisional pop. 26,638,407), c.30,000 sq mi (77,700 sq km), extreme NE India. Dispur is the capital. Almost completely separated from India by Bangladesh, Assam is b...

Chandigarh

(Encyclopedia)Chandigarh chŭnˈdēgər [key], union territory (2001 provisional pop. 900,914), 44 sq mi (114 sq km) and city, NW India. The city is the capital of both Haryana and Punjab states. It was designed by...

Kachchh

(Encyclopedia)Kachchh, Kutch, or Cutch all: kŭch [key], district (1991 pop. 1,252,507), 17,000 sq mi (44,030 sq km), Gujarat state, W India, bounded on the N by Pakistan. It is largely barren except for a fertile...

Khorana, Har Gobind

(Encyclopedia)Khorana, Har Gobind, 1922–2011, American biochemist, b. Raipur (now in Pakistan), Ph.D. Univ. of Liverpool, 1948. He became a U.S. citizen in 1966, and was a professor at the Massachusetts Institute...

zakat

(Encyclopedia)zakat zə-kätˈ [key] [Arab.,=purification], Islamic religious tax, one of the five basic requirements (arkan or “pillars”) of Islam. All adult Muslims of sound mind and body with a set level of ...

irrigation

(Encyclopedia)irrigation, in agriculture, artificial watering of the land. Although used chiefly in regions with annual rainfall of less than 20 in. (51 cm), it is also used in wetter areas to grow certain crops, e...

Browse by Subject