Presents essays arranged in chronological order on key world events that occurred in such areas as politics, science, medicine, communications, literature, music, philosophy, and international affairs during the twentieth century.

Short, clear articles about important people, writings and discoveries; includes Semites, Egyptians, Greeks, Romans, Christians, Byzantines, Holy Roman Empire, middle ages & rennaisance.

Contains essays that examine significant events in the history of the early twentieth century from 1901 to 1940, covering world politics, society and culture, literary movements, art and music, immigration, and legislation; arranged chronologically with maps, illustrations, and quotations for primary souce documents.

Includes, beginning Sept. 15, 1954 (and on the 15th of each month, Sept.-May) a special section: School library journal, ISSN 0000-0035, (called Junior libraries, 1954-May 1961). Also issued separately.

Includes entries for maps and atlases.

Provides a comprehensive survey of the key events and personalities of this period.