The emperor Julius Caeser, and he gave his name in our 7th month, July
Many countries invented and used solar calendars, because it was one of the most apparent observable incidents in daily life. They became almost universal in one form or another. Modifications were introduced such as lunar calendars and joint solar/lunar calendars.
The Maya - they invented it.
Julius Caesar
Calendars were invented thousands of years ago. It is divided into days, weeks, and months.
They Mayan civilization did. That's why everyone is freaking out about 2012...that's when they stopped continuing their calender.
It is not known who the people were that first invented the calendar. History shows that calendars date back to cave man days when the passing of each moon was carved into stone.
Ancient Egyptians invented many things that are still used today, including makeup, hair removal techniques, and calendars. They also invented plows and toothpaste.
The possessive form of the plural noun calendars is calendars'.example: The calendars' prices come down in January.
Calendars have been invented by numerous different cultures, independent from one another. Particularly, any culture engaged in agriculture (and these arose separately, first in India and the middle east and again later on in south America) would be interested in calendars.
You can buy Dog and Puppy calendars from Calendar Factory. The have many types of calendars, but they specialize in Dog calendars. Their website is at the link below.
The inca had 100 calendars.
Ancient Hindus generally made use of lunar calendars and solar calendars.