AD 109

This article is about the year 109. For the number, see 109 (number). For other uses, see 109 (disambiguation).

Millennium:	1st millennium
Centuries:	1st century 2nd century 3rd century
Decades:	80s 90s 100s 110s 120s
Years:	106 107 108 109 110 111 112

109 in various calendars

Gregorian calendar	109 CIX
Ab urbe condita	862
Assyrian calendar	4859
Balinese saka calendar	30–31
Bengali calendar	−484
Berber calendar	1059
Buddhist calendar	653
Burmese calendar	−529
Byzantine calendar	5617–5618
Chinese calendar	戊申年 (Earth Monkey) 2806 or 2599     — to — 己酉年 (Earth Rooster) 2807 or 2600
Coptic calendar	−175 – −174
Discordian calendar	1275
Ethiopian calendar	101–102
Hebrew calendar	3869–3870
Hindu calendars
- Vikram Samvat	165–166
- Shaka Samvat	30–31
- Kali Yuga	3209–3210
Holocene calendar	10109
Iranian calendar	513 BP – 512 BP
Islamic calendar	529 BH – 528 BH
Javanese calendar	N/A
Julian calendar	109 CIX
Korean calendar	2442
Minguo calendar	1803 before ROC 民前1803年
Nanakshahi calendar	−1359
Seleucid era	420/421 AG
Thai solar calendar	651–652
Tibetan calendar	阳土猴年 (male Earth-Monkey) 235 or −146 or −918     — to — 阴土鸡年 (female Earth-Rooster) 236 or −145 or −917

Year 109 (CIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Palma and Tullus (or, less frequently, year 862 Ab urbe condita). The denomination 109 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

By place

Roman Empire

• June 24 – The Aqua Traiana is inaugurated by Emperor Trajan; the aqueduct channels water from Lake Bracciano, 40 kilometers (25 mi) northwest of Rome.
• The Via Traiana is constructed at the Emperor Trajan's personal expense; the road connects Benevento with Brundisium (Brindisi).
• The Baths of Trajan, built by the architect Apollodorus of Damascus, are dedicated during the Calends. The thermae are constructed on the platform of the Palace of Nero (Domus Aurea) in Rome.
• Osroes I of Parthia succeeds his brother Pacorus II, and rules over the western Parthian Empire.
• Pliny the Younger is legate to Bithynia.

By topic

Religion

• The Christian Church proclaims itself to be universal (catholic).