286 BC

286 BC in various calendars
Gregorian calendar	286 BC; CCLXXXVI BC
Ab urbe condita	468
Ancient Egypt era	XXXIII dynasty, 38
- Pharaoh	Ptolemy I Soter, 38
Ancient Greek era	123rd Olympiad, year 3
Assyrian calendar	4465
Balinese saka calendar	N/A
Bengali calendar	−878
Berber calendar	665
Buddhist calendar	259
Burmese calendar	−923
Byzantine calendar	5223–5224
Chinese calendar	甲戌年 (Wood Dog); 2412 or 2205; — to —; 乙亥年 (Wood Pig); 2413 or 2206
Coptic calendar	−569 – −568
Discordian calendar	881
Ethiopian calendar	−293 – −292
Hebrew calendar	3475–3476
Hindu calendars
- Vikram Samvat	−229 – −228
- Shaka Samvat	N/A
- Kali Yuga	2815–2816
Holocene calendar	9715
Iranian calendar	907 BP – 906 BP
Islamic calendar	935 BH – 934 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	2048
Minguo calendar	2197 before ROC; 民前2197年
Nanakshahi calendar	−1753
Seleucid era	26/27 AG
Thai solar calendar	257–258
Tibetan calendar	阳木狗年; (male Wood-Dog); −159 or −540 or −1312; — to —; 阴木猪年; (female Wood-Pig); −158 or −539 or −1311

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

Events

As Demetrius Poliorcetes and his army are chased across Asia Minor to the Taurus Mountains by the armies of Lysimachus and Seleucus, in Greece his son Antigonus meets with success. Ptolemy's fleet is driven off and Athens surrenders to Antigonus.
After allowing Pyrrhus of Epirus to remain in possession of Macedonia with the title of king, he is expelled by Lysimachus who declares himself its king in the place of Pyrrhus.

The new law, Lex Aquilia, is enacted. This is a Roman law which provides compensation to the owners of property injured as a result of someone's fault.