Ancient Egyptians looked to the sun ... Aside from a few tweaks by other Roman rulers, the Julian calendar remained largely the same until 1582, when Pope Gregory XIII adjusted the calendar ...

Ancient Rome was quite a different story ... By 45 B.C., the new Julian calendar was created, and the civil year in Rome now officially began on January 1. The Julian calendar also introduced ...

This created some problems in ancient Rome. Around 500 BC ... Roman emperor Julius Caesar proposed a solution: the Julian calendar. This new 12-month calendar would always consist of 365 days ...

But the modern Leap Day as we know it traces its roots back to ancient Rome. Romulus ... whom Caesar was known to consort with. The new Julian calendar—which took effect in 45 B.C. after ...

The idea of an annual catch-up dates back to ancient Rome, where people had a calendar ... In honor of Caesar, this system is still known as the Julian calendar. But that wasn’t the last tweak.