When Did Calendar Years Start. When did people start saying that the year was ‘a.d.’? The system labels years based on a traditional notion of when jesus was born — with the a.d. denoting years after his birth and b.c. designating the years.
In addition to solving the issue with leap years, the gregorian calendar restored january 1 as the start of the new year. Chaitra is the first month of the year beginning on march 22 which is the day after the.