639 BC

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

639 BC in various calendars

Gregorian calendar	639 BC DCXXXIX 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
Balinese saka calendar	N/A
Bengali calendar	−1232 – −1231
Berber calendar	312
Buddhist calendar	−94
Burmese calendar	−1276
Byzantine calendar	4870–4871
Chinese calendar	辛巳年 (Metal  Snake) 2059 or 1852     — to — 壬午年 (Water  Horse) 2060 or 1853
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	2462–2463
Holocene calendar	9362
Iranian calendar	1260 BP – 1259 BP
Islamic calendar	1299 BH – 1298 BH
Javanese calendar	N/A
Julian calendar	N/A
Korean calendar	1695
Minguo calendar	2550 before ROC 民前2550年
Nanakshahi calendar	−2106
Thai solar calendar	−96 – −95
Tibetan calendar	阴金蛇年 (female Iron-Snake) −512 or −893 or −1665     — to — 阳水马年 (male Water-Horse) −511 or −892 or −1664

The year 639 BC was a year of the pre-Julian Roman calendar. In the Roman Empire, it was known as year 115 Ab urbe condita . The denomination 639 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.