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121 in various calendars
Gregorian calendar	121; CXXI
Ab urbe condita	874
Assyrian calendar	4871
Balinese saka calendar	42–43
Bengali calendar	−472
Berber calendar	1071
Buddhist calendar	665
Burmese calendar	−517
Byzantine calendar	5629–5630
Chinese calendar	庚申年 (Metal Monkey); 2818 or 2611; — to —; 辛酉年 (Metal Rooster); 2819 or 2612
Coptic calendar	−163 – −162
Discordian calendar	1287
Ethiopian calendar	113–114
Hebrew calendar	3881–3882
Hindu calendars
- Vikram Samvat	177–178
- Shaka Samvat	42–43
- Kali Yuga	3221–3222
Holocene calendar	10121
Iranian calendar	501 BP – 500 BP
Islamic calendar	516 BH – 515 BH
Javanese calendar	N/A
Julian calendar	121; CXXI
Korean calendar	2454
Minguo calendar	1791 before ROC; 民前1791年
Nanakshahi calendar	−1347
Seleucid era	432/433 AG
Thai solar calendar	663–664
Tibetan calendar	阳金猴年; (male Iron-Monkey); 247 or −134 or −906; — to —; 阴金鸡年; (female Iron-Rooster); 248 or −133 or −905

Millennium:	1st millennium
Centuries:	1st century; 2nd century ; 3rd century;
Decades:	100s; 110s; 120s ; 130s; 140s;
Years:	118; 119; 120; 121 ; 122; 123; 124;

Year 121 (CXXI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Verus and Augur (or, less frequently, year 874 Ab urbe condita). The denomination 121 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

Roman settlement in present-day Wiesbaden, Germany, is first mentioned.
Emperor Hadrian fixes the border between Roman Britain and Caledonia, on a line running from the River Tyne to the Solway Firth.
Construction of the Temple of Venus and Roma begins in Rome.

Asia

Era name changes from Yongning (2nd year) to Jianguang in the Chinese Eastern Han dynasty.^{(Needs clarification or deletion)}

Births

April 26 – Marcus Annius Verus, later Emperor Marcus Aurelius (d. 180)

Deaths

Cai Lun, Chinese inventor of paper and the papermaking process (b. AD 50)^[1]
Deng Sui, Chinese empress of the Han dynasty (b. AD 81)^[2]
Eleutherius and Antia, Roman Christian martyrs and saints

References

^ "Cai Lun | Biography, Paper, & Facts". Encyclopedia Britannica. Retrieved February 14, 2020.
^ Peterson, Barbara Bennett (2016). Notable Women of China: Shang Dynasty to the Early Twentieth Century. Routledge. p. 93. ISBN 978-1-317-46372-6.

[1] "Cai Lun | Biography, Paper, & Facts". Encyclopedia Britannica. Retrieved February 14, 2020.

[2] Peterson, Barbara Bennett (2016). Notable Women of China: Shang Dynasty to the Early Twentieth Century. Routledge. p. 93. ISBN 978-1-317-46372-6.

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