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According to Library Journal, this is "the definitive bibliographic reference covering the history, culture, area studies, and current affairs literature of the United States and Canada, from prehistory to the present."
Indexes scholarly literature on the history of the world (excluding the United States and Canada) from 1450 to the present. Coverage is broad, so the database is also useful for topics in other disciplines (e.g. religion, anthropology, or political science).
Books can provide a comprehensive overview of your topic by pointing you towards key ideas, arguments, and thinkers. Scan the index or the table of contents to find the most relevant chapter. Mine the bibliography for additional leads.
Use the Internet Archive to search for digital surrogates of Trinity's print books. Thanks to a program called controlled digital lending, you can check out and download these books as if they were physical copies on library shelves. You will need to create an account in order to borrow books.
Google Books is not as precise for local holdings as our own library catalog, but it indexes many items not held at Trinity, and it often gives excerpts using your search words. Click on "Get this book in print" to search WorldCat locations.