Who decided there would be 12 months in a year and 365 days?

Question

because if the year had 14 months I would be 33 years old!!

Answer 1

The calender that is in use throughout the world is called the Gregorian Calender and was introduced in the 16th Century by Pope Gregory XIII. Try the following web link for more information:

http://en.wikipedia.org/wiki/Gregorian_calendar

Hope this helps.

Answer 2

"king_badger" is a little off. It takes the Earth 365.242 days to orbit the sun. That means we need 24 leap years per century, not 25, so in 2100 they won't be a leap year, nor was there in 1900. The .002 means every 400 years (2000) we *do* need a leap year even though it's a century.

As for 12 months, the calendar (or "calends" from Latin, the same origin as the word "calculate") was how day were counted. In Roman times, there were only ten months, not 12, hence why the names September (sept=7), October (octo=8), November (nova=9) and December (deca=10). July and August were added early in the common era, CE (this is 2006CE), to "honour" the most famous caesars, Julius and Augustus. Other month names refer to Roman myths (eg. Janus was a minor god with two faces looking forward and backward).


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Answer 3

Nobody decided there would be 365 days. One day is the time it takes the earth to rotate on its axis - so we can't change that. And one year is the time it takes the earth to go around the sun, so we can't change that either. If you divide one of these fixed periods by the other you end up with 365.25-ish days. Simple maths - no decisions necessary.

Months are a little different. Originally they were supposed to reflect the phases of the moon, but they were tampered with by various influential people to change the number of days therein (and indeed the number of months; there used to be ten, which is why the ninth month is SEPTember, the tenth is OCTober, the eleventh is NOVember and the twelfth is DECember). July and August were added later for Julius and Augustus Caesar.

Answer 4

entire style of days in a year could desire to be 365 and as quickly as in 4 years that's greater to three hundred and sixty six days. in spite of if that's uniformly 30 days in a month, which will make the quantity purely 360 in a year. for this reason, 5 or 6 extra days could desire to be distributed on some months. ideally, that's extra effectual to try this on replace months. because of 3 historic factors, some moths have been given further days and a few did no longer. this is not sparkling why February have been given famished.

Answer 5

Well Stonehenge predates the Romans by a millennium or two. So I would guess the Druids or whoever could count the Sunrises and come to 365, and the moons waxing and waning every 28 ish days would give 13 new moons per year, but I cant give you an actual name sorry.

Answer 6

Some Roman. It is actually 12 months, 365 and a quarter days.

Answer 7

We have 365 days becuase it takes 365.25 days for us to go round the sun.

The moon goes round the earth (almost!) 12 times a year.

No one decided, its just how the planets are set up...using the rotation of the earth and moon seemed like a good way to measure time :)

Answer 8

Not if the months were shorter. The number of days corresponds to how long it takes for the earth to rotate the sun (and return to effectively the same point)

Answer 9

Calendar - from Middle English calender, Latin calendarium (account book). The Romans called the first day of each month Kalendae, or calends. Debts were due on this day, so books to track payments were called calendarium from which we get our modern day calendar.

Answer 10

Maya civilization was one that helped to say it was close to 12 months. I am not sure who exactly decided upon it though. But the Maya calendar is really well done I think.