15 BC

15 BC in various calendars
Gregorian calendar	15 BC; XV BC
Ab urbe condita	739
Ancient Greek era	191st Olympiad, year 2
Assyrian calendar	4736
Balinese saka calendar	N/A
Bengali calendar	−607
Berber calendar	936
Buddhist calendar	530
Burmese calendar	−652
Byzantine calendar	5494–5495
Chinese calendar	乙巳年 (Wood Snake); 2683 or 2476; — to —; 丙午年 (Fire Horse); 2684 or 2477
Coptic calendar	−298 – −297
Discordian calendar	1152
Ethiopian calendar	−22 – −21
Hebrew calendar	3746–3747
Hindu calendars
- Vikram Samvat	42–43
- Shaka Samvat	N/A
- Kali Yuga	3086–3087
Holocene calendar	9986
Iranian calendar	636 BP – 635 BP
Islamic calendar	656 BH – 655 BH
Javanese calendar	N/A
Julian calendar	15 BC; XV BC
Korean calendar	2319
Minguo calendar	1926 before ROC; 民前1926年
Nanakshahi calendar	−1482
Seleucid era	297/298 AG
Thai solar calendar	528–529
Tibetan calendar	阴木蛇年; (female Wood-Snake); 112 or −269 or −1041; — to —; 阳火马年; (male Fire-Horse); 113 or −268 or −1040

Millennium:	1st millennium BC
Centuries:	2nd century BC; 1st century BC ; 1st century;
Decades:	30s BC; 20s BC; 10s BC ; 0s BC; 0s;
Years:	18 BC; 17 BC; 16 BC; 15 BC ; 14 BC; 13 BC; 12 BC;

Year 15 BC was either a common year starting on Tuesday, Wednesday or Thursday or a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Monday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Drusus and Piso (or, less frequently, year 739 Ab urbe condita). The denomination 15 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

The Raeti tribes of the Alps are subjugated by Tiberius and Nero Claudius Drusus and the new Roman province of Raetia is established with Chur (in modern-day Switzerland) as its capital. During the campaign, Roman triremes destroy the fleet of the Vindelici in the Battle of Lake Constance. Augsburg is founded as Augusta Vindelicorum; and Legio XXI Rapax is stationed at Regensburg in the new province.
Drusus decides to improve the passage through the Alps for military control of Noricum and Raetia and builds the Via Claudia Augusta through Italy.
Marcus Livius Drusus Libo and Lucius Calpurnius Piso are Roman Consuls.

^ Hurley, Donna (November 28, 2004). "Roman Emperors - DIR Germanicus". Archived from the original on July 7, 2010. Retrieved June 29, 2010.

Gregorian calendar	15 BC XV BC
Ab urbe condita	739
Ancient Greek era	191st Olympiad, year 2
Assyrian calendar	4736
Balinese saka calendar	N/A
Bengali calendar	−607
Berber calendar	936
Buddhist calendar	530
Burmese calendar	−652
Byzantine calendar	5494–5495
Chinese calendar	乙巳年 (Wood Snake) 2683 or 2476 — to — 丙午年 (Fire Horse) 2684 or 2477
Coptic calendar	−298 – −297
Discordian calendar	1152
Ethiopian calendar	−22 – −21
Hebrew calendar	3746–3747
Hindu calendars
- Vikram Samvat	42–43
- Shaka Samvat	N/A
- Kali Yuga	3086–3087
Holocene calendar	9986
Iranian calendar	636 BP – 635 BP
Islamic calendar	656 BH – 655 BH
Javanese calendar	N/A
Julian calendar	15 BC XV BC
Korean calendar	2319
Minguo calendar	1926 before ROC 民前1926年
Nanakshahi calendar	−1482
Seleucid era	297/298 AG
Thai solar calendar	528–529
Tibetan calendar	阴木蛇年 (female Wood-Snake) 112 or −269 or −1041 — to — 阳火马年 (male Fire-Horse) 113 or −268 or −1040