440 BC

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Millennium: 1st millennium BC
440 BC in various calendars
Gregorian calendar 440 BC
Ab urbe condita 314
Ancient Egypt era XXVII dynasty, 86
- Pharaoh Artaxerxes I of Persia, 26
Ancient Greek era 85th Olympiad (victor
Assyrian calendar 4311
Balinese saka calendar N/A
Bengali calendar −1032
Berber calendar 511
Buddhist calendar 105
Burmese calendar −1077
Byzantine calendar 5069–5070
Chinese calendar 庚子(Metal Rat)
2257 or 2197
    — to —
辛丑年 (Metal Ox)
2258 or 2198
Coptic calendar −723 – −722
Discordian calendar 727
Ethiopian calendar −447 – −446
Hebrew calendar 3321–3322
Hindu calendars
 - Vikram Samvat −383 – −382
 - Shaka Samvat N/A
 - Kali Yuga 2661–2662
Holocene calendar 9561
Iranian calendar 1061 BP – 1060 BP
Islamic calendar 1094 BH – 1093 BH
Javanese calendar N/A
Julian calendar N/A
Korean calendar 1894
Minguo calendar 2351 before ROC
Nanakshahi calendar −1907
Thai solar calendar 103–104
Tibetan calendar 阳金鼠年
(male Iron-Rat)
−313 or −694 or −1466
    — to —
(female Iron-Ox)
−312 or −693 or −1465

Year 440 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Macerinus and Lanatus (or, less frequently, year 314 Ab urbe condita)[citation needed]. The denomination 440 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.


By place[edit]


  • Samos, an autonomous member of the Delian League and one of Athens' principal allies with a substantial fleet of its own, quarrels with Miletus and appeals to Athens for assistance. Pericles decides in favour of Miletus, so Samos revolts. Pericles then sails to Samos with a fleet to overthrow its oligarchic government and install a democratic one. Sparta threatens to interfere. However, at a congress of the Peloponnesian League, its members vote not to intervene on behalf of Samos against Athens.

Roman Republic[edit]


By topic[edit]


  • Democritus proposes the existence of indivisible particles, which he calls atoms.