| History Essay 58 - Gregorian Calendar (803 words) |
 | The early Egyptians may have been the first to employ a solar year of 365 days because of those lunar inaccuracies, using 12 months of 30 days with 5 days tacked on as a short month at the end. |
| When Julius Caesar inaugurated the "Julian Calendar" in 45 BC, it was already known that the time of a complete year - a full journey of the earth around the sun (although thought to be a full journey of the sun around the earth) was a fraction more than 365 days. |
| Thus there were three years with 365 days and a fourth with 366 (the "Leap Year"), the extra day being plugged into February just before the 25th of the month. |
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