Rerum Gestarum Libri Qui Supersunt is a historical book written by the Roman historian Ammianus Marcellinus. The book was published in 1871 and is a compilation of Marcellinus' surviving works. It is a valuable source of information about the Roman Empire during the 4th century AD. The book covers a wide range of topics, including political and military events, religious and cultural practices, and the lives of notable figures of the time. Marcellinus...