The Pennsylvania Primary Sources is a pack of 20 primary source documents that are relevant to the history of Pennsylvania. The Pennsylvaia Primary Sources include historical documents, maps, photographs, political cartoons and more. We dug through the archives so you don't have to! Perfect for Gallery Walks & Literature Circles! Great for Research & Reference! Build Common Core Skills: Analysis • Critical Thinking • Point of View • Compare and Contrast • Order of Events • & Much More!