AI overview
I don't have enough context to write an accurate overview of what "260" refers to, since you've only indicated it relates to "year" without providing specific information about what happened in 260 or why it matters. Could you provide more details about what "260" refers to?
AI-generated from the Wikipedia summary — may contain errors.
Article
The humiliation of Emperor Valerian (Hans Holbein the Younger, ca. 1521)
Year 260 (CCLX) was a leap year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Saecularis and Donatus (or, less frequently, year 1013 Ab urbe condita). The denomination 260 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.