“Cambridge University Library holds the largest and most important collection of the scientific works of Isaac Newton (1642-1727). We present here an initial selection of Newton’s manuscripts, concentrating on his mathematical work in the 1660s. Over the next few months we will be adding further works until the majority of our Newton Papers are available on this site.”

• Overview of Newton Papers held at Cambridge University Library (from Manuscripts Department website)
• History of Isaac Newton’s Papers (from Newton Project website)