Page "Ab urbe condita" Paragraph 5

The traditional date for the founding of Rome of 21 April 753 BC, was initiated by Varro.

Varro may have used the consular list with its mistakes, and called the year of the first consuls " 245 ab urbe condita ", accepting the 244-year interval from Dionysius of Halicarnassus for the kings after the foundation of Rome.

The correctness of Varro's calculation has not been proven scientifically but is still used worldwide.