Defining Gender, 1450-1910 This link opens in a new window60,000+ images and documents (both manuscripts and printed sources) of primary source material useful for investigations in many disciplines, including women’s and gender studies, history, literature, sociology and education. Includes a wide range of primary source material including ephemera, pamphlets, commonplace books, diaries, periodicals, letters, ledgers, manuscript journals, poetry, receipt books and conduct and advice literature that reveal attitudes towards gender.