351 BC

Millennium:	1st millennium BC
Centuries:	5th century BC 4th century BC 3rd century BC
Decades:	370s BC 360s BC 350s BC 340s BC 330s BC
Years:	354 BC 353 BC 352 BC 351 BC 350 BC 349 BC 348 BC

351 BC in various calendars

Gregorian calendar	351 BC CCCLI BC
Ab urbe condita	403
Ancient Egypt era	XXX dynasty, 30
- Pharaoh	Nectanebo II, 10
Ancient Greek era	107th Olympiad, year 2
Assyrian calendar	4400
Balinese saka calendar	N/A
Bengali calendar	−943
Berber calendar	600
Buddhist calendar	194
Burmese calendar	−988
Byzantine calendar	5158–5159
Chinese calendar	己巳年 (Earth Snake) 2347 or 2140     — to — 庚午年 (Metal Horse) 2348 or 2141
Coptic calendar	−634 – −633
Discordian calendar	816
Ethiopian calendar	−358 – −357
Hebrew calendar	3410–3411
Hindu calendars
- Vikram Samvat	−294 – −293
- Shaka Samvat	N/A
- Kali Yuga	2750–2751
Holocene calendar	9650
Iranian calendar	972 BP – 971 BP
Islamic calendar	1002 BH – 1001 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1983
Minguo calendar	2262 before ROC 民前2262年
Nanakshahi calendar	−1818
Thai solar calendar	192–193
Tibetan calendar	阴土蛇年 (female Earth-Snake) −224 or −605 or −1377     — to — 阳金马年 (male Iron-Horse) −223 or −604 or −1376

Year 351 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Peticus and Crispinus (or, less frequently, year 403 Ab urbe condita). The denomination 351 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

Persian Empire

• Encouraged by a failed effort at invasion of Egypt by King Artaxerxes III, Phoenicia and Cyprus revolt against Persia.

Greece

• Demosthenes tries to get the Athenians to cease depending on paid mercenaries and return to the old concept of a citizen army. He also delivers his First Philippic, warning Athenians of the folly of believing that Philip's ill health will save Athens from the Macedonians. In response, Athens' citizens vote for increased armaments.

Roman Republic

• The Etruscans are badly defeated by the Romans and abandon their attacks on the city and sue for peace.
• First use of the heavy throwing spear, the pilum, (according to Livy) in battle against the Gauls.
• Gaius Marcius Rutilus becomes the first Roman plebeian to be elected to the office of censor.

Artaxerxes III and the Egyptian Revolt

In 351 BC, Artaxerxes III, the King of Persia, undertook a significant military campaign to reassert Persian control over Egypt, which had been in a state of revolt. The revolt was led by Nectanebo II, the last native pharaoh of Egypt's 30th Dynasty. Artaxerxes III prepared a large and well-equipped army to invade Egypt. His strategy involved not only military might but also political and diplomatic maneuvers to weaken Egyptian resistance. In 351 BC, Artaxerxes III launched his invasion. The Persians initially faced strong resistance from Nectanebo II and his forces, who utilized Egypt’s natural defenses, such as the Nile Delta's marshlands, to their advantage.

Outcome

Despite the initial successes of the Egyptian defense, the Persian forces gradually gained the upper hand. The details of the campaign are sparse, but it is known that by 343 BC, Artaxerxes III successfully subdued Egypt, marking the end of Nectanebo II’s reign and the last period of native rule until the Ptolemaic dynasty.