You may search by keyword to find background articles, scholarship, and primary sources.
Ex: World War I
You may also select Browse Topics and scan the list of dates, eras, and events for an entry point.
American Decades (2000s) by 
African American Eras by 
History of World War I
Search for print books, ebooks, and videos available at the library and online.
Use filters on the left to limit by specific source type, date range, and more.