This innovative 7-vol. set offers an exceptional, interdisciplinary approach to learning by integrating two important subjects: science and history. The volumes are chronologically ordered from 2000 B.C. to the present, addressing a wide variety of scientific developments with explanations of underlying factors and their effects on politics, economics, culture and daily life. The entries -- more than 20 topical essays, 25 full biographies and 85 sketches of notable people in each volume -- move forward through history, describing notable scientific discoveries and achievements along with their social and historical impact.