Description: This six-volume reference serves as a road map leading to key questions and answers about the history and development of civilization. Written for middle school to adult readers, the 500 articles (alphabetically arranged) explore the background and recent changes in an industry that influences daily life, while providing accurate information to meet the students' cross-curriculum needs in the study of science, geography, history and social issues. In addition to specific topics (American and world history, geography, economics, science and technology, the environment, literature and transportation in the 21st century), the entries examine broad issues such as the social, economic and political effects of developments in transportation and technology and their contribution to creating a global community.

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