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|Centuries:||1st century BC – 1st century – 2nd century|
|Decades:||20s 30s 40s – 50s – 60s 70s 80s|
|Years:||52 53 54 – 55 – 56 57 58|
|55 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||808|
|Chinese calendar||甲寅年 (Wood Tiger)
2751 or 2691
— to —
乙卯年 (Wood Rabbit)
2752 or 2692
|Coptic calendar||−229 – −228|
|- Vikram Samvat||111–112|
|- Shaka Samvat||N/A|
|- Kali Yuga||3156–3157|
|Iranian calendar||567 BP – 566 BP|
|Islamic calendar||584 BH – 583 BH|
|Minguo calendar||1857 before ROC
|Seleucid era||366/367 AG|
|Thai solar calendar||597–598|
Year 55 (LV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Vetus (or, less frequently, year 808 Ab urbe condita). The denomination 55 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.
- Roman emperor Nero is also a Roman Consul.
- Agrippina the Younger is expelled from the imperial palace by her son Nero, who installs her in Villa Antonia in Misenum.
- The Roman jurist Sabinus writes three books on the rights of citizens.