Iranians around the world celebrate Yalda, which is one o

Iranians around the world celebrate Yalda, which is one of the most ancient Persian festivals. The festival dates back to the time when a majority of Persians were followers of Zoroastrianism prior to the advent of Islam.

On Yalda festival, Iranians celebrate the arrival of winter, the renewal of the sun and the victory of light over darkness.

Considered the longest night of the year, Yalda eve is the night when ancient Iranians celebrated the birth of Mithra, the goddess of light.