The Mayans, Egyptians, Babylonians, Romans, and Chinese all had calendars in the ancient days. We use the Gregorian calendar decreed by Pope Gregory XIII. I couldn't tell you which came first because no one knows when the first calendar was invented or who did it. It is all a mystery!
No specific date or period has been determined for the invention of the calendar, since it is believed that humans around the world have used different means to mark the cycles of nature throughout time. For instance, the ancient Egyptians, Greeks, Chinese, and Mayans all had various calendar systems based on natural observations of the Moon's cycles and seasonal changes. The Egyptians were the first to work out a formula for the solar year (based on the position of the Sun), which differs slightly from the lunar year (based on the phases of the Moon). This formula was eventually adopted by the Romans and was the forerunner to the modern calendar.
The first Roman calendar had ten months and utilized a number of blank days or "filler" months when necessary to stretch the year to its proper 365 days. This calendar ran on a four-year cycle and had far too many blanks, so it was easily...
the calender that we know today was invented by the georgians, but the months were invented by the romans
George Washington invented the lunar calendar
I think Mayas
I t was invented around 4231 B.C.
1914
Aside from the Mayans use of a calendar to aid in farming, it may have helped them track 'holy days and festivals". There is no evidence that the Mayan calendar was the first one ever created.
The name of the person that invented the first calendar is not known. The first calendar was invented in Scotland.
It is not known who invented the lunar calendar. However, the ancient Chinese are among the first people who begin using a lunar calendar.
The calendar was technically first invented by the Ancient Egyptians.
In Calendaria, Babalonia.
Egypt
It is not know precisely who or where the first 365 day calendar was invented or used. Many cultures on many continents used and invented it independently.
in the nine hundreds
Egyptians
yes
George Washington invented the lunar calendar
I think Mayas
It is not known who the people were that first invented the calendar. History shows that calendars date back to cave man days when the passing of each moon was carved into stone.