A primary source is a document or other sort of evidence written or created during the time under study, or by one of the persons or organizations directly involved in the event.
Primary sources offer an inside view of a particular event.
Primary sources in the sciences are defined differently. For more information on this topic, see the Primary Literature in the Sciences page prepared by the Science Librarian. Full-Text Microform Resources Early American Imprints . The Early American Imprints collection is the definitive resource of information about every aspect of life in 17th and 18th century America, from agriculture and auctions through foreign affairs, diplomacy, literature, music, religion, the Revolutionary War, temperance, witchcraft, and just about any other topic imaginable. The Series I collection is based on Charles Evans' American Bibliography and the Supplement to Evans' American Bibliography by Roger Bristol.