The Library at Pergamon, founded by Attalus I; it contained 200,000 volumes which were moved to the Serapeion by Mark Antony and Cleopatra, after the destruction of the Museion. The Serapeion was partially destroyed in 391, and the last books disappeared in 641 CE following the Arab conquest. The Library at Athens, the Ptolemaion, which gained importance following the destruction of the Library at Alexandria ; the Library of Pantainos, around 100 CE; the library of Hadrian, in 132 CE.