AD 123

"123 (year)" redirects here. For the year of the pre-Julian Roman calendar, see 123 BC.

Millennium:	1st millennium
Centuries:	1st century 2nd century 3rd century
Decades:	100s 110s 120s 130s 140s
Years:	120 121 122 123 124 125 126

123 in various calendars

Gregorian calendar	123 CXXIII
Ab urbe condita	876
Assyrian calendar	4873
Balinese saka calendar	44–45
Bengali calendar	−470
Berber calendar	1073
Buddhist calendar	667
Burmese calendar	−515
Byzantine calendar	5631–5632
Chinese calendar	壬戌年 (Water Dog) 2820 or 2613     — to — 癸亥年 (Water Pig) 2821 or 2614
Coptic calendar	−161 – −160
Discordian calendar	1289
Ethiopian calendar	115–116
Hebrew calendar	3883–3884
Hindu calendars
- Vikram Samvat	179–180
- Shaka Samvat	44–45
- Kali Yuga	3223–3224
Holocene calendar	10123
Iranian calendar	499 BP – 498 BP
Islamic calendar	514 BH – 513 BH
Javanese calendar	N/A
Julian calendar	123 CXXIII
Korean calendar	2456
Minguo calendar	1789 before ROC 民前1789年
Nanakshahi calendar	−1345
Seleucid era	434/435 AG
Thai solar calendar	665–666
Tibetan calendar	阳水狗年 (male Water-Dog) 249 or −132 or −904     — to — 阴水猪年 (female Water-Pig) 250 or −131 or −903

Year 123 (CXXIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Paetinus and Apronius (or, less frequently, year 876 Ab urbe condita). The denomination 123 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

• Emperor Hadrian averts a war with Parthia by a personal meeting with Osroes I (according to the Historia Augusta, disputed).
• Housesteads Fort is constructed on Hadrian's Wall north of Bardon Mill.
• Hadrian's Villa at Tivoli is built.
• The Temple of Al-Lat in Palmyra is dedicated somewhere between this year and 164 AD.

Asia

• In China, Ban Yong, son of Ban Chao, reestablishes the Chinese control over the Tarim Basin.
• The Chinese government establishes Aide of the Western Regions over the Tarim Basin.

Africa

• Hadrian leads a punitive campaign against Berbers who had been raiding Roman towns in Roman Mauretania.

By topic

Arts and sciences

• Chinese scientist Zhang Heng corrects the calendar to bring it into line with the four seasons.

Births

• Annia Cornificia Faustina, sister of Marcus Aurelius (d. 158)