Tools
Double-armed catapults operating on the principle of torsion are introduced by engineers working for Dionysius the Elder of Syracuse. These devices, which use hair ropes to hold potential energy, are used to propel darts at the enemy. See also 332 bce Tools.
| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | 5th century BC – 4th century BC – 3rd century BC |
| Decades: | 420s BC 410s BC 400s BC – 390s BC – 380s BC 370s BC 360s BC |
| Years: | 400 BC 399 BC 398 BC – 397 BC – 396 BC 395 BC 394 BC |
| 397 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 397 BC |
| Ab urbe condita | 357 |
| Armenian calendar | N/A |
| Assyrian calendar | 4354 |
| Bahá'í calendar | -2240 – -2239 |
| Bengali calendar | -989 |
| Berber calendar | 554 |
| English Regnal year | N/A |
| Buddhist calendar | 148 |
| Burmese calendar | -1034 |
| Byzantine calendar | 5112 – 5113 |
| Chinese calendar | 癸未年 (2240/2300) — to —
甲申年(2241/2301) |
| Coptic calendar | -680 – -679 |
| Ethiopian calendar | -404 – -403 |
| Hebrew calendar | 3364 – 3365 |
| Hindu calendars | |
| - Bikram Samwat | -340 – -339 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2705 – 2706 |
| Holocene calendar | 9604 |
| Iranian calendar | 1018 BP – 1017 BP |
| Islamic calendar | 1049 BH – 1048 BH |
| Japanese calendar | |
| Korean calendar | 1937 |
| Minguo calendar | 2308 before ROC 民前2308年 |
| Thai solar calendar | 147 |
| Wikimedia Commons has media related to: 397 BC |
Year 397 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Iullus, Albinus, Medullinus, Maluginensis, Fidenas and Capitolinus (or, less frequently, year 357 Ab urbe condita). The denomination 397 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.
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