Who invited the 365 day calendar?

Question

Who invited the 365 day calendar?

Thanks!

Answer 1

The day calendar, I din't know they were having a party though.

Answer 2

Among their other accomplishments, the ancient Mayas invented a calendar of remarkable accuracy and complexity. At right is the ancient Mayan Pyramid Chichen Itza, Yucatan, Mexico. The Pyramid of Kukulkan at Chichén Itzá, constructed circa 1050 was built during the late Mayan period, when Toltecs from Tula became politically powerful. The pyramid was used as a calendar: four stairways, each with 91 steps and a platform at the top, making a total of 365, equivalent to the number of days in a calendar year.

The Maya calendar was adopted by the other Mesoamerican nations, such as the Aztecs and the Toltec, which adopted the mechanics of the calendar unaltered but changed the names of the days of the week and the months. An Aztec calendar stone is shown at right (below).

The Maya calendar uses three different dating systems in parallel, the Long Count, the Tzolkin (divine calendar), and the Haab (civil calendar). Of these, only the Haab has a direct relationship to the length of the year.

Answer 3

It was the Egyptians, Julius Caesar and Pope Gregory

The Egyptians invented the solar calender and it was split up in 12 with 30 days each month and they added an aditional 5 days. Those 5 days were considered there resting days. They used a solar because they worshiped the sun gods.

When Julius Ceasar Reigned, he made the Julius calender. He had divided the year into 12 months which had groups of 30 31 and 29 (for Febuary) adding up to 365 days, and at every four years he would add 1 extra day to Febuaray so the year could equal 365.25 days in a year.

Julius Caesar started the calender in 36 BC, Ceasar had to add an extra 80 days to 46 BC so 45 BC had to stay with the seasons. 46 BC had 445 days in it! Caesar called 46 BC the ultimus annus confusionis ("The final year of confusion"). Roman wits, however, called it the annus confusionis ("Year of Confusion").

But the year is not exactly 365.25 days, it is 365.242199 days long! The calender gets ahead every 1d (d, is not a typo) every year. Causes Caeser's calender to completly mess up.

In 325 AD the Council of Nicaea established a formula to compute the date of Easter. The council adopted it on the 21 of may. But, it does not concide with passover.

By the 1570's, the Julian Calendar was out of alignment with the seasons by 10 days. Easter was being computed incorrectly, and so celebrated on the wrong day.
Other important holy days were also being celebrated on the wrong days. Pope Gregory XIII appointed a commission to develop an improved calendar.

Then an elegant formula was invented by Aloysius Lilius, an Italian physician: to keep the Julian formula for leap years, but
A century year is not a leap year unless it is divisible by 400.
2000 is a leap year, but not 1700, 1800, & 1900
Removes 3 days every 400 years:
Eliminates all but ~3 hours of error per 400y.

Pope Greogory instuted the calender october 4th 1582. And, because of Julius's calender Pope Greogory had to take 10 days off the calender to realign the calender with the seasons. So the day after October 4th 1582 was October 15th 1582!


Other calenders:
There was the Jewish calender with a nighteen year cycle.

And there was the Lunar calender too that was used by the moon phases of the moon it was 11 days off our calender.

The Chineses calender is a combination of the lunar calender and the solar calender.

There is the Metonic cycle that has 235 lunar months and is almost 19 solar years.

Answer 4

Pope Gregory, thats why its called the Gregorian calendar, the Julian calendar was used before and was invented by the Caesar of the time.

Answer 5

I think Pope Gregory (I don't know how many there were or which one) revamped the calendar. I believe up until that time, they were still working from the Cesarean calendar that Cesar set up. I think Pope Gregory was accepting of astronomy and either advisers or he, himself, realized that the Cesarean calendar didn't mesh with how the Earth moved and so forth. So, he set up the 365 day calendar.

Answer 6

properly january has 31 days, february has 28, march has 31, and april has 30. so once you upload that up you get one hundred twenty. now you upload 10 days to get to might 10th. one hundred twenty+10=a hundred thirty so definite might 10th is the single hundred and thirtieth day of a 365-day 12 months

Answer 7

well this calendar was not invented by Romans, it was a modification from an ancient mayan calendar.

Answer 8

The Egyptians. Caesar had it wrong, and he realized it when he went visiting Cleopatra in Egypt. The scribes showed him what was wrong with his calendar and fixed it for him. Learned that in my History class.

Answer 9

Julius Caesar (that's why it's called "Julian"), although I don't think "invented" is exactly the right word. "Discovered" is better. And, of course, it wasn't just Caesar but he had lots of help.

Answer 10

romans