Boldface indicates either philosophers who were a universal influence on all Stoics afterward or a Stoic person/place/event.
BC
535–475
Life of Heraclitus of Ephesus (influenced all the early Stoics)
490
First Persian invasion of Greece and the Battle of Marathon
470
Birth of Socrates outside the walls of Athens
450s
Completion of the Stoa Poikilē, the famous “painted porch” on the Athenian
430
Birth of Xenophon of Athens, student of Socrates
412
Birth of Diogenes of Sinope, founder with Antisthenes and Crates of Thebes of the Cynic school
399
Trial and execution of Socrates in Athens
387
Plato founds the Academy in Athens
384
Birth of Aristotle in Stagira, Chalkidiki
382
Birth of Antigonus the One-Eyed in Elimiotis, Macedonia
371
Birth of Theophrastus, successor to Aristotle, in Eresos, Lesbos
365
Birth of Crates of Thebes, Cynic student of Diogenes of Sinope
360
Birth of Stilpo of Megara
356
Birth of Alexander the Great in Pella, Macedonia
354
Death of Xenophon, whose book on Socrates would convert Zeno to philosophy
347
Aristotle establishes first school in Assos
343
Aristotle appointed tutor of the young Alexander the Great
336
Philip II of Macedon murdered; Alexander succeeds him
335
Aristotle founds the Lyceum in Athens
334
Birth of Zeno, founding scholarch (official head) of the Stoa, in Kition, Cyprus
333
Alexander liberates Cyprus from Persian rule
330
Birth of Cleanthes, the second scholarch of the Stoa, in Assos
323
Death of Alexander and start of the Wars of Succession
Death of Diogenes of Sinope in Corinth
323–322
Aristotle departs Athens for Chalcis, Euboea, where he dies in 322; Theophrastus succeeds him as head of the Lyceum
312
Zeno arrives in Athens following a shipwreck (following Persaeus’s account “at age twenty-two”)
Kition’s last king, Pumathion, killed by Ptolemy I
306
Epicurus founds his school in Athens
Demetrius the Besieger takes Cyprus from Ptolemy I; declares his father, Antigonus the One-Eyed, king
Birth of Persaeus of Kition, student, roommate, and personal secretary to Zeno
Birth of Aristo of Chios
305–304
Demetrius besieges Rhodes
301
Death of Antigonus the One-Eyed at the Battle of Ipsus, Phrygia
Zeno begins teaching at the Stoa Poikilē
279
Birth of Chrysippus, the third scholarch of the Stoa, in Soli, Cilicia
Gauls invade Macedonia, desecrating the royal tombs, killing Karaunos; aborted invasion of Greece
278
Antigonus II Gonatas and Antiochus I reach treaty creating Europe/Asia division
276
Antigonus II reestablished as king of Macedonia
Zeno of Kition and Aratus of Soli invited to Antigonus’s court in Pella
Ptolemy II defeated by Antiochus I in Syria
272
Victories by Ptolemy II in southern Anatolia
264
Arcesilaus succeeds as sixth head of the Academy, and is a primary skeptical opponent of the early Stoics
Antigonus II puts Athens under siege (until 262)
262
Death of Zeno, the founding scholarch of Stoicism, in Athens; succeeded by Cleanthes
261
Antigonus II defeats the navy of Ptolemy II at the Battle of Cos
256–253
Antigonus II restores Athenian autonomy, pulling his garrison out of Athens
245
Ptolemy III Euergetes appoints Eratosthenes, who studied with Zeno and Aristo, to head of the Library of Alexandria and as tutor to Ptolemy IV Philopator
243
Death of Zeno’s student and roommate Persaeus at battle with Aratus in Corinth
239
Death of Antigonus II
Seleucus defeated by Antiochus Hierax, retreating to Cilicia
235
Sphaerus joins the court of Cleomenes, king of Sparta
230
Death of Cleanthes in Athens; succeeded by Chrysippus
Birth of Diogenes in Seleucia on the Tigris in Babylon; he would become the fifth scholarch of the Stoa
226
A great quake topples the Colossus of Rhodes
222
Cleomenes III defeated by Antigonus III Doson, escapes to Egypt