306 BC

Millennium:	1st millennium BC
Centuries:	5th century BC – 4th century BC – 3rd century BC
Decades:	330s BC  320s BC  310s BC  – 300s BC –  290s BC  280s BC  270s BC
Years:	309 BC 308 BC 307 BC – 306 BC – 305 BC 304 BC 303 BC

306 BC in other calendars

Gregorian calendar	306 BC CCCV BC
Ab urbe condita	448
Ancient Egypt era	XXXIII dynasty, 18
- Pharaoh	Ptolemy I Soter, 18
Ancient Greek era	118th Olympiad, year 3
Assyrian calendar	4445
Bengali calendar	−898
Berber calendar	645
Buddhist calendar	239
Burmese calendar	−943
Byzantine calendar	5203–5204
Chinese calendar	甲寅年 (Wood Tiger) 2391 or 2331     — to — 乙卯年 (Wood Rabbit) 2392 or 2332
Coptic calendar	−589 – −588
Discordian calendar	861
Ethiopian calendar	−313 – −312
Hebrew calendar	3455–3456
Hindu calendars
- Vikram Samvat	−249 – −248
- Shaka Samvat	N/A
- Kali Yuga	2796–2797
Holocene calendar	9695
Iranian calendar	927 BP – 926 BP
Islamic calendar	955 BH – 954 BH
Julian calendar	N/A
Korean calendar	2028
Minguo calendar	2217 before ROC 民前2217年
Seleucid era	6/7 AG
Thai solar calendar	237–238

Year 306 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Tremulus and Arvina (or, less frequently, year 448 Ab urbe condita). The denomination 306 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

Events

By place

Cyprus

• Menelaus, brother of Egypt's ruler, Ptolemy I Soter, is defeated and captured by Demetrius Poliorcetes in the Battle of Salamis, a naval battle off Cyprus. The battle is a complete victory for Demetrius and results in his capture of Cyprus from Ptolemy and it completely destroys the naval power of Egypt. This gives Demetrius Poliorcetes' father, Antigonus I Monophthalmus, control of the Aegean, the eastern Mediterranean, and all of the Middle East except Babylonia.
• With Antigonus and Demetrius now each assuming the title of king, Ptolemy, as well as Cassander, Lysimachus and Seleucus I Nicator, respond by doing the same.

Syria

• Antigonus proclaims himself king of Asia Minor and northern Syria thus commencing the Antigonid dynasty. Antigonus appoints Demetrius Poliorcetes king and co-regent.

Sicily

• A peace agreement is reached between 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, to strengthen his rule over the Greek cities of Sicily.

Egypt

• Antigonus tries to follow up his victory in Cyprus by invading Egypt with a large army and a formidable fleet. But Ptolemy 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.