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Bulgarian literature

(Encyclopedia)Bulgarian literature. For early ecclesiastical writings, see Church Slavonic. Modern Bulgarian literature stems from the work of Father Paisi, who in 1762 began his history of the Slav Bulgarians. The...

complexity

(Encyclopedia)complexity, in science, field of study devoted to the process of self-organization. The basic concept of complexity is that all things tend to organize themselves into patterns, e.g., ant colonies, im...

Ghiberti, Lorenzo

(Encyclopedia)Ghiberti, Lorenzo lōrĕnˈtsō gēbĕrˈtē [key], c.1378–1455, Florentine sculptor. He received his early training in the workshop of Bartoluccio. In 1401 he entered the competition for a bronze p...

Moore, George Edward

(Encyclopedia)Moore, George Edward, 1873–1958, English philosopher, b. Upper Norwood. He was educated at Cambridge, where he was a fellow (1898–1904) and then a lecturer (1911–25) in the department of moral s...

Aachen

(Encyclopedia)Aachen bät äˈkhən [key], city, North Rhine–Westphalia, W Germany, near the Belgian and Dutch borders. One of the great historic cities of Europe, it is now chiefly i...

poster

(Encyclopedia)poster, placard designed to be posted in some public place for purposes of commercial announcement or propaganda. Advertising makes wide use of posters, as do charitable and political organizations. I...

psychiatry

(Encyclopedia)psychiatry səkīˈətrē, sī– [key], branch of medicine that concerns the diagnosis and treatment of mental, emotional, and behavioral disorders, including major depression, schizophrenia, and anx...

computer virus

(Encyclopedia)computer virus, rogue computer program, typically a short program designed to disperse copies of itself to other computers and disrupt those computers' normal operations. A computer virus usually atta...

Mendelssohn, Felix

(Encyclopedia)Mendelssohn, Felix (Jakob Ludwig Felix Mendelssohn) mĕnˈdəlsən, Ger. yäˈkôp lo͝otˈvĭkh fāˈlĭks mĕnˈdəls-zōnˌ [key], 1809–47, German composer; grandson of the Jewish philosopher Mos...

Johnson, Philip Cortelyou

(Encyclopedia)Johnson, Philip Cortelyou, 1906–2005, American architect, museum curator, and historian, b. Cleveland, grad. Harvard Univ. (B.A., 1927). One of the first Americans to study modern European architect...