170

This article is about the year 170. For the number, see 170 (number). For other uses, see 170 (disambiguation).

Millennium:	1st millennium
Centuries:	1st century 2nd century 3rd century
Decades:	150s 160s 170s 180s 190s
Years:	167 168 169 170 171 172 173

170 in various calendars

Gregorian calendar	170 CLXX
Ab urbe condita	923
Assyrian calendar	4920
Balinese saka calendar	91–92
Bengali calendar	−423
Berber calendar	1120
Buddhist calendar	714
Burmese calendar	−468
Byzantine calendar	5678–5679
Chinese calendar	己酉年 (Earth Rooster) 2867 or 2660     — to — 庚戌年 (Metal Dog) 2868 or 2661
Coptic calendar	−114 – −113
Discordian calendar	1336
Ethiopian calendar	162–163
Hebrew calendar	3930–3931
Hindu calendars
- Vikram Samvat	226–227
- Shaka Samvat	91–92
- Kali Yuga	3270–3271
Holocene calendar	10170
Iranian calendar	452 BP – 451 BP
Islamic calendar	466 BH – 465 BH
Javanese calendar	46–47
Julian calendar	170 CLXX
Korean calendar	2503
Minguo calendar	1742 before ROC 民前1742年
Nanakshahi calendar	−1298
Seleucid era	481/482 AG
Thai solar calendar	712–713
Tibetan calendar	阴土鸡年 (female Earth-Rooster) 296 or −85 or −857     — to — 阳金狗年 (male Iron-Dog) 297 or −84 or −856

Year 170 (CLXX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Clarus and Cornelius (or, less frequently, year 923 Ab urbe condita). The denomination 170 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

• The Suebian tribes of the Marcomanni cross the Danube and invade northern Italy. The Roman army (20,000 men) is destroyed near Carnuntum in Pannonia.
• The Marcomanni plunder Opitergium (modern Oderzo) and besiege Aquileia. This is the first time hostile forces entered Italy since 101 BC.
• Emperor Marcus Aurelius writes in Sirmium (Pannonia) his first of 12 books of the Meditations in Koine Greek.
• The Costoboci cross the Danube (Dacia) and ravage Thrace in the Balkan Peninsula. They reached Eleusina, near Athens, and destroyed the temple of the Eleusinian Mysteries.
• Marcus Aurelius orders humane treatment for Christians and slaves throughout the Roman Empire.
• An Equestrian Statue of Marcus Aurelius is erected in Rome.

By topic

Arts and sciences

• The fundamental works of Ptolemy on cartography are published.

Births

• Guo Jia, trusted adviser to the warlord Cao Cao (d. 207)
• Julia Domna, Roman Empress (d. 217)

Deaths

• Marcus Cornelius Fronto, Roman grammarian, rhetorician and advocate (approximate date) (b. c. 100)
• An Shigao, Buddhist missionary
• Apuleius, Latin writer (b. 124)