AI overview
I don't have sufficient context to write an accurate overview of "122." While you've indicated it relates to a year, I cannot determine which year or historical period you're referring to, or what specific significance "122" holds without additional information.
AI-generated from the Wikipedia summary — may contain errors.
Article
Hadrian's Wall near Greenhead
Year 122 (CXXII) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Aviola and Neratius (or, less frequently, year 875 Ab urbe condita). The denomination 122 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.