An encyclopedic work with articles on the main ideas and movements of global cultural history from antiquity to the present day. The NDHI focuses not only on the ideas themselves, but also on the cultural environments in which they arose, and their transformations and influence.[To access freely online, scroll down past the entries for "Science Encyclopedia" in the link provided.] One can profitably also consult the entries in the earlier (1973-74) Dictionary of the History of Ideas ( online and Ref CB5 .D52), which approaches much of the same subject matter but more from the perspective of examining the history of influential texts.
Link to resource: New Dictionary of the History of IdeasAvailable in print: CB9 .N49 2005