Editing 312 BC (section)

==== Greece/Macedon/Thrace ====
* The people of [[Epirus]] elevate [[Aeacides]]' brother, [[Alcetas II of Epirus|Alcetas]], to the kingship.<ref>Diod. XIX 88, 89; Plut. ''Pyrr. 3''.</ref>
* [[Alcetas II of Epirus|Alcetas]] advances on the Macedonian garrison of [[Acarnania]] under [[Lyciscus of Macedon|Lyciscus]], a general of [[Cassander]]. Three battles are fought and a defeated Alcetas flees to a fortress in Epirus. Cassander marches the main Macedonian field army into Epirus and forces Alcetas to ally with him.<ref>Diod. XIX 88; Plut. ''Pyrr. 3''.</ref>
* [[Cassander]] marches on [[Apollonia (Illyria)|Apollonia]], which people had driven out his garrison with the help of the [[Illyrians]], but the Appolonians and Illyrians defeat him in battle, driving him out of western Greece for the time being.
* The people of Epirus, tired of Alcetas (who ruled Epirus harshly), rose up and murdered him and his sons.
* [[Telesphorus (general)|Telesphorus]] arrives in to the [[Peloponnese]] and starts expelling [[Cassander]]'s garrisons. He successfully liberates all cities and towns that are being held for Cassander by [[Polyperchon]] and his son [[Alexander (son of Polyperchon)|Alexander]]; all except [[Sicyon]] and [[Corinth]] who are being defended by Polyperchon and Alexander themselves.<ref>Diod. XIX 64,1–2.</ref>
* [[Cassander]] sails against the city of [[Oreus]] on [[Euboea]] with a fleet of 30 ships. He blockades its port trying to force the city's surrender.
*  [[Telesphorus (general)|Telesphorus]] comes to the aid of Oreus from the [[Peloponnese]] with 20 ships and 1,000 infantry, while  [[Antigonus I Monophthalmus|Antigonid]] admiral [[Medius of Larissa|Medius]] sails to relieve Oreus with a 100 ships from [[Asia Minor]]; they break Cassander's blockade.
* [[Cassander]] receives reinforcements from Athens (under Thymochares the Sphettian, descendant of [[Thymochares]]) and defeats Telesphoros' squadron.<ref>Diod. XIX 64,6–8</ref>
* [[Antigonus I Monophthalmus|Antigonus]] sends his nephew [[Ptolemy (nephew of Antigonus I Monophthalmus)|Ptolemy]], whom he has made [[strategos|Strategos of Greece]], with 5,000 infantry, 500 cavalry and 150 warships (he had recalled and reinforced Medius' fleet) to take command of all Antigonid forces and affairs in Greece.<ref>Diod. XIX 77,2–4</ref>
* [[Cassander]] abandons the siege of Oreus, concentrating his forces at [[Chalcis]] to counter [[Ptolemy (nephew of Antigonus I Monophthalmus)|Ptolemy]] who has landed at Bathys in [[Boeotia]] and has been reinforced by the Boeotian League with 2,200 infantry and 1,300 cavalry.<ref>Diod. XIX 77,4–5</ref>
* Antigonus marches his main field army to the [[Hellespont|Hellespontine region]] threatening to invade Europe and attack Macedon, forcing Cassander to retreat to Macedon to prepare its defences.<ref>Diod. XIX 77,4–6</ref>
* [[Antigonus I Monophthalmus|Antigonus]] arrives at the [[Propontis]] and tries to negotiate an alliance with [[Byzantium]], but the city, at the urging of [[Lysimachus]], remains neutral; without it Antigonus gives up on the idea of crossing over into Europe.<ref>Diod. XIX 77,6–7</ref>
* The [[Corcyraeans]] come to the aid of [[Apollonia (Illyria)|Apollonia]] and [[Epidamus]] and help the Apollonians and the people of Epidamus to remove the garrisons Cassander put there. They free Apollonia, but give the city of Epidamus to the Illyrian king [[Glaucias of Taulantii|Glaucias]].<ref>Diod. XIX 78,1</ref>
* [[Ptolemy (nephew of Antigonus I Monophthalmus)|Ptolemy]] captures [[Chalcis]], removes Cassander's garrison, but does not install a garrison of his own. [[Eretria]] and [[Carystus]], both on [[Euboea]] as well, join Antigonus' alliance. Ptolemy crosses over to mainland Greece and captures [[Oropos]], again removing Cassander's garrison, he then hands it over to Antigonus' ally, the [[Boeotian League]]. After Oropos he invades [[Attica]] putting pressure on [[Athens]] to negotiate a truce. From Attica he marches on [[Thebes, Greece|Thebes]], captures it and removes Cassander's garrison. He moves on to [[Phocis]], drives out Cassander's garrisons in that region as well, and moves into [[Opuntian Locris]], where he besieges [[Opus, Greece|Opus]].<ref>Diod. XIX 78,2–5</ref>
* [[Telesphorus (general)|Telesphorus]], who had been subordinated to Antigonus' other nephew [[Ptolemy (nephew of Antigonus I Monophthalmus)|Ptolemy]] considered this an insult and ends his friendship with [[Antigonus I Monophthalmus|Antigonus]] through betrayal.<ref name=Diod1987>{{cite book|last=Siculus|first=Diodorus|title=Library|url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/19E*.html#87|volume=XIX|chapter=87}}</ref>
* [[Telesphorus (general)|Telesphorus]] enters [[Elis (city)|Elis]], fortifies its citadel, and enslaves the city. He then marches on [[Olympia, Greece|Olympia]] and plunders its sacred precinct collecting 500 talents; with his booty Telesphorus stars hiring mercenaries.<ref name=Diod1987/>
* [[Ptolemy (nephew of Antigonus I Monophthalmus)|Ptolemy]] soon restores the situation and persuades Telesphorus to give up his revolt.<ref>Diod. XIX 87,1–3</ref>