Editing 306 BC (section)

== Events ==
<onlyinclude>
=== By place ===
==== Cyprus ====
* [[Demetrius Poliorcetes]] lands on [[Cyprus]] and besieges [[Menelaus (son of Lagus)|Menelaus]], brother of [[Ancient Egypt|Egypt's]] ruler, [[Ptolemy I Soter]], at [[Salamis, Cyprus|Salamis]]. Ptolemy Soter, coming to his brother's aid, is decisively defeated in the [[Battle of Salamis in Cyprus (306 BC)|Battle of Salamis]]. The battle completely destroys the naval power of Egypt and results in the capture of Cyprus by Demetrius. This gives Demetrius' father, [[Antigonus I Monophthalmus]], control of the [[Aegean Sea|Aegean]] and the eastern [[Mediterranean]].<ref name="Diodorus52">{{cite book|last=Siculus|first=Diodorus|title=Library|url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/20C*.html#52|volume=XX|chapter=52}}</ref>

==== Syria ====
* Antigonus I Monophthalmus proclaims himself king of [[Asia Minor]] and northern [[Syria]] thus commencing the Antigonid dynasty. He appoints his son Demetrius king and co-regent.<ref name="Diodorus53">{{cite book|last=Siculus|first=Diodorus|title=Library|url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/20C*.html#53|volume=XX|chapter=53}}</ref>

==== Egypt ====
* Antigonus Monophthalmus tries to follow up his victory in Cyprus by invading Egypt with a large army and a formidable fleet, but Ptolemy Soter successfully holds the frontier against him. However, the year's events mean that Ptolemy no longer engages in overseas expeditions against Antigonus.

==== Thrace ====
* A four-drachma coin, picturing [[Alexander the Great]], is issued by [[Lysimachos]] from this time until [[281 BC]]. At least one of them is now preserved at the [[British Museum]] in [[London]].
</onlyinclude>

==== Italy ====
* The [[Samnites]] take [[Sora, Lazio|Sora]] and [[Calatia]], cities allied to the [[Roman Republic|Romans]], and enslave their inhabitants.<ref>Diod. XX 80,1.</ref><ref name=Diod80>{{cite book|last=Siculus|first=Diodorus|title=Library|url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/20C*.html803|volume=XX|chapter=80}}</ref>
* The [[Roman Republic|Romans]] invade [[Iapygians|Iapygia]] and begin a siege of Silvium (garrisoned by the Samnites). Eventually, they take the city by storm, taking 5,000 prisoners. After the Siege of Silvium they invade [[Samnium]] itself, pillaging the countryside for five months.<ref>Diod. XX 80,1–5.</ref><ref name=Diod80/>

==== Sicily ====
* [[Agathocles of Syracuse|Agathocles]] tries to negotiate a settlement with Deinocrates, the leader of the exiles, but the latter refuses, forcing Agathocles to continue the war for dominance over eastern Sicily.<ref name="Diod79">{{cite book|last=Siculus|first=Diodorus|title=Library|url=https://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/20C*.html#79|volume=XX|chapter=79}}</ref>
* A peace agreement is reached between [[Syracuse, Sicily|Syracuse]] and [[Carthage]]. The peace restricts Carthaginian power in [[Sicily]] to the area west of the Halycus (Platani) River. This agreement allows the [[tyrant]] of Syracuse, [[Agathocles of Syracuse|Agathocles]], to strengthen his rule over the Greek cities in the east of Sicily.