What does 212 mean in Telephone Country Codes?

212

Year 212 (CCXII) was a leap 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 Asper and Camilius (or, less frequently, year 965 Ab urbe condita). The denomination 212 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. 212 (CCXII) was a leap year starting on Wednesday of the Julian calendar, the 212th year of the Common Era (CE) and Anno Domini (AD) designations, the 212th year of the 1st millennium, the 12th year of the 3rd century, and the 3rd year of the 210s decade. As of the start of 212, the Gregorian calendar was in agreement with the Julian calendar, which was the dominant calendar of the time.

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