311 BC

Centuries:	5th century BC - 4th century BC - 3rd century BC
Decades:	340s BC 330s BC 320s BC - 310s BC - 300s BC 290s BC 280s BC
Years:	314 BC 313 BC 312 BC - 311 BC - 310 BC 309 BC 308 BC

311 BC by topic
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishments and disestablishments categories
Establishments - Disestablishments v • d • e

**311 BC in other calendars**
Gregorian calendar	311 BC
Ab urbe condita	443
Armenian calendar	N/A
Bahá'í calendar	-2154 – -2153
Buddhist calendar	234
Chinese calendar	2326/2386 ([[Sexagenary cycle\|]]年) — to — 2327/2387 ([[Sexagenary cycle\|]]年)
Ethiopian calendar	-318 – -317
Hebrew calendar	3450 – 3451
Hindu calendars
- Vikram Samvat	-255 – -254
- Shaka Samvat	N/A
- Kali Yuga	2791 – 2792
Holocene calendar	9690
Iranian calendar	932 BP – 931 BP
Islamic calendar	961 BH – 960 BH
Japanese calendar
- Imperial Year	Kōki 350 (皇紀350年)
- Jōmon Era	9690
Julian calendar	-265
Korean calendar	2023
Thai solar calendar	233
v • d • e

[edit] Events

Seleucus reestablishes himself as satrap of Babylonia and asserts control over Media and Susiana (Elam).

Ptolemy tries to occupy Syria. However, Demetrius Poliorcetes wins a battle over Ptolemy's forces and Antigonus enters Syria in force. So, after only a few months, Ptolemy evacuates his forces from Syria.
In view of the threat by Seleucus to his control of the East, Antigonus decides to make peace with all of his adversaries, except Seleucus, who now holds Babylon. All of the diadochi confirm the existing boundaries and the freedom of the Greek cities. Ptolemy and Lysimachus are confirmed as satraps of Egypt and Thrace, respectively, and Antigonus and Cassander are confirmed as commanders of the army in Asia and Europe. Antigonus, no longer regent but now titled the strategos (officer in charge) of the whole of Asia, rules in Syria from the Hellespont to the Euphrates, including Asia Minor.
It is agreed by all parties that the young king Alexander IV of Macedon, son of Alexander the Great, will become king of the whole empire when he comes of age in six years' time.
The peace agreement between the diadochi is soon violated. On the pretext that garrisons have been placed in some of the free Greek cities by Antigonus, Ptolemy and Cassander renew hostilities against him.

The Carthaginian general Hamilcar crosses the Mediterranean with an army and wins Battle of Himera against the tyrant of Syracuse, Agathocles' forces. Agathocles is then besieged in Syracuse.