Columbia Encyclopedia

(Encyclopedia) May Fourth Movement (1919), first mass movement in modern Chinese history. On May 4, about 5,000 university students in Beijing protested the Versailles Conference (Apr. 28, 1919) awarding Japan the f...

(Encyclopedia) monoclonal antibody, an antibody that is mass produced in the laboratory from a single clone and that recognizes only one antigen. Monoclonal antibodies are typically made by fusing a normally short-l...

(Encyclopedia) Moran, Edward mərănˈ [key], 1829–1901, American painter of marine and historical subjects, b. England. He came to the United States with his family in 1844. In 1899 he completed a series of 13 pa...

(Encyclopedia)  Black, Timuel Dixon, Jr., 1918-2021, American social activist and community organizer, b. Birmingham, Al., Roosevelt Univ. (B.A., 1952), Univ. of ...

(Encyclopedia) Cash, Johnny, 1932–2003, American singer and songwriter, b. Kingsland, Ark. Born to a farm family, he went to Memphis in 1955 and recorded such hits as “I Walk the Line” (1956) and “Ring of Fi...

(Encyclopedia) Prado, Museo Nacional del präˈdō, Span. präˈᵺō [key], Spanish national museum of painting and sculpture, in Madrid, one of the finest in Europe. Situated on the Paseo del Prado, it was begun b...

(Encyclopedia) De Quincey, Thomas də kwĭnˈsē [key], 1785–1859, English essayist. In 1802 he ran away from school and tramped about the country, eventually settling in London. His family soon found him and ente...

(Encyclopedia) Domesday Book do͞omzˈdā [key], record of a general census of England made (1085–86) by order of William I (William the Conqueror). The survey ascertained the economic resources of most of the cou...

(Encyclopedia) drought, abnormally long period of insufficient rainfall. Drought cannot be defined in terms of inches of rainfall or number of days without rain, since it is determined by such variable factors as th...

(Encyclopedia) Caligula kəlĭgˈyo͝olə [key], a.d. 12–a.d. 41, Roman emperor (a.d. 37–a.d. 41); son of Germanicus Caesar and Agrippina the Elder. His real name was Caius Caesar Germanicus. As a small child, h...