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550 AD

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Q: When was the twelve month calendar invented?
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Related questions

How does a twelve month lunar calendar differ from your twelve month solar calendar?

they are diffrent


A twelve-month calendar was developed during the dynasty.?

A 12-month calendar was developed during the Shang Dynasty.


What twelve month calendar was developed during What dynasty?

It was the Romans who introduced the 12 month calendar commissioned by Julius Caesar and it was known as the Julian Calendar.


Who were the first people to discover the twelve month calendar?

The Mayans were the first people to make the calendar.


Who invented the 12 month calendar?

mesopotamia


A twelve-month calendar was developed during what dynasty?

A 12-month calendar was developed during the Shang Dynasty.


Who made the 12 month calendar?

The Sumerians invented it and it had been changed over time.


Who were the first people to develop a calendar?

All cultures have invented some form of calendar. Most are based on the solar year or the lunar month.


How do you define a month?

A month is any of the twelve parts, as January or February, into which the calendar year is divided. It is also a period of four weeks or 30 days. It is also the time from any day of one calendar moth to the corresponding day of the next.


Is the Hebrew calendar based on the lunar calendar?

The Hebrew calendar is a lunisolar calendar; it follows both the moon and the sun. Each month begins at the time of the new moon like a lunar calendar, but seven out of every nineteen years have thirteen months each instead of twelve to keep the calendar in sync with the seasons.


Why is Month called a month?

The word 'month' is a noun, a word for any of the twelve divisions of a calendar year; a word for a thing.The noun 'month' is a common noun because it is a general word for any month of the year.A common noun is capitalized only when it is the first word in a sentence.First invented and used in Mesopotamia, it is a natural period related to the motion of the moon. Month and moon have the same common origins.


What calendar do the Jews use?

The Hebrew calendar. It has twelve lunar months, generally alternating 29 or 30 days per month; and a leap month is added every 2 or 3 years in order to keep our lunar months in step with the solar seasons.