the idiot calendar
The Chinese lunar calendar does not use months, rather divisions. The Chinese lunar calendar has 24 divisions in a year.
Fifteen months is equivalent to one year and three months. It can also be expressed as 1.25 years. In terms of days, it typically amounts to about 457 days, depending on the specific months involved.
The Roman Calendar has 10 months in its system. Among these ten months, there were 304 days. This has been expanded on to 12 months and 365 days, which is still used today.
3
six months plus one week
It made it possible for Caesar to introduce the Julian calendar.
a cool calendar!
The months of January and February were added to the Roman calendar.
Our current calendar comes for the Julian calendar, the calendar introduced by Julius Caesar. In the 15th century pope Gregory XIII shortened the day of that calendar by about 11 minutes. Apart from that, our calendar is the same as the one introduced by Julius Caesar. Because of this, the name of our current calendar is Gregorian calendar. The Roman calendar was divided into months and the name of the months we use today are derived from the names the Romans used. For a short while at the beginning of their history, the Romans had calendar with 10 months. Soon after that, it was reformed and lengthened to 12 months. The Julian Calendar was a further reform of the Roman calendar. Two months were renamed after Julius Caesar and Augustus. This is the origin of the names of the months of July and August. The names of the other months came from the older Roman calendar.
The Chinese lunar calendar does not use months, rather divisions. The Chinese lunar calendar has 24 divisions in a year.
The Jewish calendar has 12 months. They are Tishre, Chesvan, Kislev, Tevet, Shevat, Adar, Nissan, Iyar, Sivan, Tamuz, Av, Elul. However, during a leap year, an extra month is added. So during a leap you you have Adar I and Adar II which gives you 13 during a leap year.
10 months
No. Some countries use different calendars. So for example you have a Hebrew calendar, a Chinese calendar, an Islamic calendar, a Hindu calendar and many others. For those that use the Gregorian calendar, the months are the same around the world.
It was the old Roman calendar which had only 10 months in a year.
The months have never changed order, but Julius Caesar did add in two new months. He added in the months of July and August so that he and his business partner could have months named after them. This made all the months shorter.
The months of the Julian calendar are the months we use today. We use the Gregorian calendar, which is a slightly modified version of the Julian calendar. The month July is named after Julius Caesar. August is named after Augustus.
15 weeks = 3.45 months