when was the library of alexandria burned down
Destruction of the Library of Alexandria Ancient and modern sources identify four possible occasions for the partial or complete destruction of the Library of Alexandria: Julius Caesar's fire during his civil war in 48 BC; the attack of Aurelian in AD 270â€“275; the decree of Coptic Christian pope Theophilus of Alexandria in AD 391; and the Muslim conquest of Egypt in (or after) AD 642.[2]