291 BC

250 BC in various calendars

Gregorian calendar	250 BC CCL BC
Ab urbe condita	504
Ancient Egypt era	XXXIII dynasty, 74
- Pharaoh	Ptolemy II Philadelphus, 34
Ancient Greek era	132nd Olympiad, year 3
Assyrian calendar	4501
Balinese saka calendar	N/A
Bengali calendar	−842
Berber calendar	701
Buddhist calendar	295
Burmese calendar	−887
Byzantine calendar	5259–5260
Chinese calendar	庚戌年 (Metal Dog) 2448 or 2241     — to — 辛亥年 (Metal Pig) 2449 or 2242
Coptic calendar	−533 – −532
Discordian calendar	917
Ethiopian calendar	−257 – −256
Hebrew calendar	3511–3512
Hindu calendars
- Vikram Samvat	−193 – −192
- Shaka Samvat	N/A
- Kali Yuga	2851–2852
Holocene calendar	9751
Iranian calendar	871 BP – 870 BP
Islamic calendar	898 BH – 897 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2084
Minguo calendar	2161 before ROC 民前2161年
Nanakshahi calendar	−1717
Seleucid era	62/63 AG
Thai solar calendar	293–294
Tibetan calendar	阳金狗年 (male Iron-Dog) −123 or −504 or −1276     — to — 阴金猪年 (female Iron-Pig) −122 or −503 or −1275

291 BC in various calendars

Gregorian calendar	291 BC CCXCI BC
Ab urbe condita	463
Ancient Egypt era	XXXIII dynasty, 33
- Pharaoh	Ptolemy I Soter, 33
Ancient Greek era	122nd Olympiad, year 2
Assyrian calendar	4460
Balinese saka calendar	N/A
Bengali calendar	−883
Berber calendar	660
Buddhist calendar	254
Burmese calendar	−928
Byzantine calendar	5218–5219
Chinese calendar	己巳年 (Earth Snake) 2407 or 2200     — to — 庚午年 (Metal Horse) 2408 or 2201
Coptic calendar	−574 – −573
Discordian calendar	876
Ethiopian calendar	−298 – −297
Hebrew calendar	3470–3471
Hindu calendars
- Vikram Samvat	−234 – −233
- Shaka Samvat	N/A
- Kali Yuga	2810–2811
Holocene calendar	9710
Iranian calendar	912 BP – 911 BP
Islamic calendar	940 BH – 939 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2043
Minguo calendar	2202 before ROC 民前2202年
Nanakshahi calendar	−1758
Seleucid era	21/22 AG
Thai solar calendar	252–253
Tibetan calendar	阴土蛇年 (female Earth-Snake) −164 or −545 or −1317     — to — 阳金马年 (male Iron-Horse) −163 or −544 or −1316

Events

By place

Greece

• Demetrius Poliorcetes joins his son, Antigonus, in the siege of Thebes. As the Thebans defend their city stubbornly, Demetrius forces his men to attack the city at great cost. Demetrius finally takes the city after using siege engines to demolish its walls.

Roman Republic

• The Romans storm and take the Samnite city of Venusia.

Deaths

• Menander, Athenian dramatist, considered to be a master of Greek New Comedy (b. c. 342 BC)
• Dinarchus, Athenian speech writer whose work is generally thought to reflect the gradual decline of Attic oratory (b. c. 361 BC)