• Health

    How Many Days in a Year?

    Understanding the Gregorian Calendar The Gregorian calendar is the most widely used calendar in the world today. It was introduced by Pope Gregory XIII in 1582 as a reform of the Julian calendar, which had been in use since 45 BCE. The Gregorian calendar is a solar calendar, meaning it is based on the amount of time it takes for…

    Read More »
Back to top button