Yalda is one of the most celebrated traditional events in Iran which marks the longest night of the year.
Iranians around the world celebrate Yalda, which is one of the most ancient Persian festivals.
On Yalda festival, Iranians celebrate the arrival of winter, the renewal of the sun and the victory of light over darkness.
On this night, family members get together (most often in the house of the eldest member) and stay awake all night long. Dried nuts, watermelon and pomegranate are served, as supplications to God for increasing his bounties. Classic poetry and old mythologies are read aloud as well.
Iranians believe those who begin winter by eating summer fruits would not fall ill during the cold season. Therefore, eating watermelons is one of the most important traditions in this night.