EuropeanaThe Europeana website provides millions of digital objects documenting Europe's digital cultural heritage. It currently offers over 32 millions images and over 26 million texts, plus audio, video, and 3D objects. You might find it most helpful to browse its collections by chronological period.
Hanover Historical Texts CollectionThe Hanover College Historical Texts Collection makes available digital versions of historical texts for use in history and humanities courses. You can search by keyword, or browse a list of chronological and geographical categories.
Post-Reformation Digital LibraryThe Post-Reformation Digital Library is a select database of digital books relating to the development of theology and philosophy during the Reformation and Post-Reformation/Early Modern Era (late 15th-18th c.). Late medieval and patristic works printed and referenced in the early modern era are also included.
Slave Voyages: The Trans-Atlantic and Intra-American Slave TradeThe SlaveVoyages website is a collaborative digital initiative that compiles and makes publicly accessible records of the largest slave trades in history. Search these records to learn about the broad origins and forced relocations of more than 12 million African people who were sent across the Atlantic in slave ships, and hundreds of thousands more who were trafficked within the Americas. Explore where they were taken, the numerous rebellions that occurred, the horrific loss of life during the voyages, the identities and nationalities of the perpetrators, and much more.
Early Modern Catholicism: An Anthology of Primary Sources by 
Early Modern Witches: Witchcraft Cases in Contemporary Writing by 
Medieval Trade in the Mediterranean World: Illustrative Documents by