Overview
All data
10 statements · 0% with external sources · numbers in brackets are citations
On other databases
1 identifiers linking 521 across the web's reference databases
10 statements · 0% with external sources · numbers in brackets are citations
1 identifiers linking 521 across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
Year 521 (DXXI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Sabbatius and Valerius. The denomination 521 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.