Noctes Atticae (“Attic Nights”) is a work written by Aulus Gellius (c. 125 – after 180 CE) in the 2nd century CE during his stay in Athens. It is a list of fascinating information about the ancient world that he obtained in conversation or read in books. The work contains knowledge about grammar, geometry, philosophy, history and many other subjects, as well as anecdotes about famous people.
Attic Nights is a kind of encyclopedia that has survived almost entirely to this day – all of the 20th books have survived except for the 8th one.