Editing Zeno of Citium (section)

==Notes==
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{{efn|name="dates"|1=The dates for Zeno's life are controversial. According to [[Apollodorus of Athens|Apollodorus]], as quoted by [[Philodemus]], Zeno died in Arrheneides' [[Archon of Athens|archonship]] (262/1 BC). According to [[Persaeus]] ([[Diogenes Laërtius]] vii. 28), Zeno lived for 72 years. His date of birth is thus 334/3 BC. A plausible chronology for his life is as follows: He was born 334/3 BC, and came to Athens in 312/11 BC at the age of 22 {{harv|Laërtius|1925|loc=§ 28}}. He studied philosophy for about 10 years {{harv|Laërtius|1925|loc=§ 2}}; opened his own school during Clearchus' archonship in 301/0 BC (Philodemus, ''On the Stoics'', col. 4); and was the head of the school for 39 years and 3 months (Philodemus, ''On the Stoics'', col. 4), and died 262/1 BC. For more information see {{harvnb|Ferguson|1911|pp=185–186}}; and {{harvnb|Dorandi|2005|p=38}} }}
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