Through the course of history. Extensive, cross-referenced indexes. period. Thematic headings allow readers to trace a particular theme highlights developments in the arts and sciences during the same A comprehensive reference set first published in 1976. This revised and updated edition now covers the history of the world from 10,000 B.C. to A.D. 1992. The set covers The Ancient World (326422-X, $70); The Medieval World (326465-3, $75); The Expanding World (326406-8, $75); and The Modern World (326695-8, $90). Each volume presents two parallel sets of information. The left-hand page provides a detailed listing of significant events in politics, war, natural disasters, international relations, conquests, and annexations during a specified period. The facing right-hand page Annotation copyright by Book News, Inc., Portland, OR.