The calendar helped Ancient China because the calendar was used to know when certain rivers would flood.
A calendar.
Modern calendar for one
The ancient Egyptians had a 360 day calendar, but i do believe they were the founders of the 365 calendar. Hope it help :)
There was an ancient Egyptian calendar, but modern Egypt uses the Coptic Calendar, which is based on the calendar of ancient Egypt.
No, they had to do work hard and help out the family
no they had sevants to help and do chores
The Ancient Mayan Civilization calendar.
Helped rebuild and reunite China after many years of war.
The Mr gazzi calendar
The Ancient Roman calendar is known as the Calendar of Romulus. The months of the Calendar of Romulus are Martius, Aprilis, Maius, Iunius, Quintilis, Sextilis, September, October, November, and December.
China
I can't see "this" calendar.