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|102 by topic|
|Ab urbe condita||855|
|Balinese saka calendar||23–24|
|Chinese calendar||辛丑年 (Metal Ox)|
2798 or 2738
— to —
壬寅年 (Water Tiger)
2799 or 2739
|Coptic calendar||−182 – −181|
|- Vikram Samvat||158–159|
|- Shaka Samvat||23–24|
|- Kali Yuga||3202–3203|
|Iranian calendar||520 BP – 519 BP|
|Islamic calendar||536 BH – 535 BH|
|Minguo calendar||1810 before ROC|
|Seleucid era||413/414 AG|
|Thai solar calendar||644–645|
228 or −153 or −925
— to —
229 or −152 or −924
Year 102 (CII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Ursus and Sura (or, less frequently, year 855 Ab urbe condita). The denomination 102 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.
- Lucius Julius Ursus Servianus and Lucius Licinius Sura become Roman Consuls.
- Emperor Trajan returns to Rome after a successful campaign against Dacia, through which he reestablishes clear Roman sovereignty over king Decebalus.
- Trajan divides Pannonia into two provinces sometime between this year and 107.
- The port of Portus is enlarged.
- Having organised the territories of the Tarim basin, Chinese general Ban Chao retires to Luoyang, and dies shortly thereafter.
- Pope Clement I (Traditional date)
- Ban Chao, general of the Eastern Han dynasty (b. AD 32)
- Empress Yin