A hotel registry entry for the Hôtel de Londres in Chamonix dated 23 July 1816 contains a comment, in Percy Shelley's hand and written in Greek, declaring, "I am a lover of mankind, a democrat and an atheist." The registry document has just resurfaced in the Wren Library, Trinity College, Cambridge, and was recently documented on the library's blog. The circumstances behind the document has also been explored more fully on Graham Henderson's blog. At the latter site, a high resolution image of the registry is available, embedded below:
See both blog posts for an account of the public scandal Shelley's comment provoked.