AD 90

AD 90 in various calendars
Gregorian calendar	AD 90; XC
Ab urbe condita	843
Assyrian calendar	4840
Balinese saka calendar	11–12
Bengali calendar	−503
Berber calendar	1040
Buddhist calendar	634
Burmese calendar	−548
Byzantine calendar	5598–5599
Chinese calendar	己丑年 (Earth Ox); 2787 or 2580; — to —; 庚寅年 (Metal Tiger); 2788 or 2581
Coptic calendar	−194 – −193
Discordian calendar	1256
Ethiopian calendar	82–83
Hebrew calendar	3850–3851
Hindu calendars
- Vikram Samvat	146–147
- Shaka Samvat	11–12
- Kali Yuga	3190–3191
Holocene calendar	10090
Iranian calendar	532 BP – 531 BP
Islamic calendar	548 BH – 547 BH
Javanese calendar	N/A
Julian calendar	AD 90; XC
Korean calendar	2423
Minguo calendar	1822 before ROC; 民前1822年
Nanakshahi calendar	−1378
Seleucid era	401/402 AG
Thai solar calendar	632–633
Tibetan calendar	阴土牛年; (female Earth-Ox); 216 or −165 or −937; — to —; 阳金虎年; (male Iron-Tiger); 217 or −164 or −936

Millennium:	1st millennium
Centuries:	1st century BC; 1st century ; 2nd century;
Decades:	70s; 80s; 90s ; 100s; 110s;
Years:	87; 88; 89; AD 90 ; 91; 92; 93;

AD 90 (XC) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Domitian and Nerva (or, less frequently, year 843 Ab urbe condita). The denomination AD 90 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 Romans build a small garrison in the suburbs of modern Regensburg (approximate date).
Pliny the Younger's appointment as urban quaestor ends.
Emperor Domitian and Nerva are Roman Consuls.
Cologne becomes the capital of Germania Inferior.
A humiliating peace is bought by Domitian from Decebalus of Dacia.

Continuing his conquest of the Tarim basin, Chinese General Ban Chao defeats the Kushan led by Kanishka.

Young Flavian Woman is made. It is now kept at Musei Capitolini, Rome (approximate date).

The Roman epic poet Gaius Valerius Flaccus dies, having written works that include the Argonautica, describing the voyage of Jason and the Argonauts to retrieve the Golden Fleece from the mythical land of Colchis.