http://tags.library.upenn.edu/tag/chronology PennTags Feed http://tags.library.upenn.edu/makerecord/url/968 http://tags.library.upenn.edu/makerecord/url/968 "This site offers two approaches for the study of specific time periods in American women's history. Each section includes a timeline that links specific events with highly relevant online sources, followed by a guide to research sources (e.g., census, newspapers, secondary sources) that are appropriate for the specified time period."