639 BC

Millennium:	1st millennium BC
Centuries:	8th century BC – 7th century BC – 6th century BC
Decades:	660s BC  650s BC  640s BC  – 630s BC –  620s BC  610s BC  600s BC
Years:	642 BC 641 BC 640 BC – 639 BC – 638 BC 637 BC 636 BC

639 BC in other calendars

Gregorian calendar	639 BC DCXXXVIII BC
Ab urbe condita	115
Ancient Egypt era	XXVI dynasty, 26
- Pharaoh	Psamtik I, 26
Ancient Greek era	35th Olympiad, year 2
Assyrian calendar	4112
Bengali calendar	−1231
Berber calendar	312
Buddhist calendar	−94
Burmese calendar	−1276
Byzantine calendar	4870–4871
Chinese calendar	辛巳年 (Metal Snake) 2058 or 1998     — to — 壬午年 (Water Horse) 2059 or 1999
Coptic calendar	−922 – −921
Discordian calendar	528
Ethiopian calendar	−646 – −645
Hebrew calendar	3122–3123
Hindu calendars
- Vikram Samvat	−582 – −581
- Shaka Samvat	N/A
- Kali Yuga	2463–2464
Holocene calendar	9362
Iranian calendar	1260 BP – 1259 BP
Islamic calendar	1299 BH – 1298 BH
Julian calendar	N/A
Korean calendar	1695
Minguo calendar	2550 before ROC 民前2550年
Thai solar calendar	−96 – −95

Events

• The interregnum in Rome ends. Ancus Marcius becomes the fourth king of Rome.