They Finally fixed the Calendar!
The Romans continued to observe the new year in late March, but their calendar was continually tampered with by various emperors so that the calendar soon became out of synchronization with the sun.
In order to set the calendar right, the Roman senate, in 153 BC, declared January 1 to be the beginning of the new year. But tampering continued until Julius Caesar, in 46 BC, established what has come to be known as the Julian Calendar. It again established January 1 as the new year. But in order to synchronize the calendar with the sun, Caesar had to let the previous year drag on for 445 days.



