Calendar - Some believe the site was used an as ancient calendar.

This is the basis of the oldest and most ancient Igbo calendar.

November was the ninth month of the ancient Roman calendar.

The ancient Roman religious calendars assign only one day to the festival.

It is possible that they were part of some ancient calendar.

Some ancient calendars, such as the Persian calendar, used 360 days for a year.

Had the ancient calendar continued this would have been ad.

September was the seventh month in the ancient Roman calendar, as its name indicates.

In the ancient calendar this day is marked as Nept.

The year 2000, according to the country's unique, ancient calendar, was only a few hours away.