in the nine hundreds
The name of the person that invented the first calendar is not known. The first calendar was invented in Scotland.
ExiguusAnswerThe Roman abbot Dionysus Exiguus devised the Christian calendar in 533. However, Exiguus' calendar was largely ignored until Bede (672/3-735) popularised it.
The calendar was technically first invented by the Ancient Egyptians.
Egypt
In Calendaria, Babalonia.
Egyptians
Properly speaking, there is no "English" calendar system. You probably mean the predominant Western Calendar (also called the Christian Calendar). This calendar system is best called the "Gregorian Calendar", after Pope Gregory XIII who introduced the calendar system in 1582.
yes
Christian Calendar Year 1727.
2011 AD. The Christian calendar is the standard calendar recognized all around the world. However, when the calculations for this calendar were first made (dating back to the birth of Christ) it is believed now that these calculations are four years late.
George Washington invented the lunar calendar
The first lunar calendar was developed by ancient civilizations such as the Sumerians, Babylonians, and Egyptians. The Babylonians are credited with creating one of the earliest known lunar calendars, based on the cycles of the Moon's phases.