No, Jesus did not invent the calendar. The modern calendar system in use today (the Gregorian calendar) was created centuries after Jesus' time, in the 16th century. It is based on the solar calendar introduced by Julius Caesar in 45 BCE.
Jesus' birthday is not marked in the Jewish calendar.
George Washington invented the lunar calendar
The name of the person that invented the first calendar is not known. The first calendar was invented in Scotland.
no it is based on an old egyptian calendar
Every calendar that shows Easter
China
The Egyptian
Rome
The calendar was technically first invented by the Ancient Egyptians.
I t was invented around 4231 B.C.
The Romans invented it in 46 ad.
Egypt