Editing Ptolemy III Euergetes (section)

===Scholarship and culture===
Ptolemy III continued his predecessor's sponsorship of scholarship and literature. The [[Great Library]] in the [[Musaeum]] was supplemented by a second library built in the [[Serapeum of Alexandria|Serapeum]]. He was said to have had every book unloaded in the Alexandria docks seized and copied, returning the copies to their owners and keeping the originals for the Library.<ref>[[Galen]] ''Commentary on the Epidemics'' 3.17.1.606</ref> [[Galen]] attests that he borrowed the official manuscripts of [[Aeschylus]], [[Sophocles]], and [[Euripides]] from [[Athens]] and forfeited the considerable deposit he paid for them in order to keep them for the Library rather than returning them.<ref>{{cite web |last1=El-Abbadi |first1=Mostafa |title=Library of Alexandria |url=https://www.britannica.com/topic/Library-of-Alexandria |publisher=Encyclopaedia Britannica |access-date=10 March 2022}}</ref> The most distinguished scholar at Ptolemy III's court was the polymath and geographer [[Eratosthenes]], most noted for his remarkably accurate calculation of the [[History of geodesy#Hellenic world|circumference of the world]]. Other prominent scholars include the mathematicians [[Conon of Samos]] and [[Apollonius of Perge]].<ref name=H635>{{harvnb|Hölbl|2001|pp=63–65}}</ref>