Julius Caesar Roman Calendar

Julius Caesar Roman Calendar. It established the solar year as approximately 365.25 days and introduced the. The julian calendar was a roman calendar developed at the request of julius caesar by the astronomer sosygenes and put into effect in 45 bce.

Even with mercedonius, the roman calendar eventually became so far off that julius caesar, advised by the astronomer sosigenes, ordered a sweeping reform. It was the official calendar in the.