One of the last mysteries of the Dead Sea Scrolls has been decoded

One of the final mysteries of the Dead Sea Scrolls has been unlocked.

Researchers at the University of Haifa spent over a year piecing together 60 tiny fragments of the scroll.

Archeologists have deciphered a sort of calendar with festivals marking the changing of the seasons including, the festival of New Wheat, New Wine and New Oil.

The calendar was based on a 364-day year, with each festival taking place 50 days after the other.

Researchers said the calendar worked perfectly with 364 days because "this number can be divided into four and seven."

That means special occasions would always fall on the same day.

The Dead Sea Scrolls consist of 900 scrolls and comprise what is thought to be the oldest known copy of the Bible in existence.