Empedocles

Empedocles (c. 490 - c. 430 BCE) was a Greek philosopher who lived in Greek Sicily during the 9th century BCE. He recorded his ideas in a poetic work, On Nature.

During the early 16th century, the Assassin Ezio Auditore da Firenze retrieved a hidden copy of this book in Constantinople.

Trivia

 * While a copy of the play is retrieved in-game by Ezio, in real life, the book remains lost, with only fragments of it having survived.

Reference

 * Assassin's Creed: Revelations