Merry merry what-now?

The Winter Solstice - Yule Lore
Your rituals are recycled

Would you say Yalda is similar to Yule??
Iranians celebrate Yalda Night
The Iranian people all over the world have celebrated the arrival of winter and the victory of light over darkness in Yalda Night, one of the most ancient Persian celebrations

Yalda has a history as long as the religion of Mithraism. The Mithraists believed that this night is the night of the birth of Mithra, Persian angel of light and truth. At the morning of the longest night of the year the Mithra was born.

Over the centuries Mithraism spread to Greece and Ancient Rome via Asia Minor, gaining popularity within the ranks of the Roman army. In the 4th century AD as a result of errors made in calculating leap years and dates, the birthday of Mithra was transferred to 25 December

Yalda is traced back to Syriac Mithra-worshipers used the term 'yalda' specifically with reference to the birth of Mithra. As the longest night of the year, the Eve of Yalda (Shab-e Yalda) is also a turning point, after which the days grow longer. In ancient times it symbolized the triumph of the Sun(son?) God over the powers of darkness

Mithra has the following in common with the Jesus character:

Mithra was born on December 25th of the virgin Anahita.
The babe was wrapped in swaddling clothes, placed in a manger and attended by shepherds.
He was considered a great traveling teacher and master. He had 12 companions or "disciples."
He performed miracles.
As the "great bull of the Sun," Mithra sacrificed himself for world peace.
He ascended to heaven. Mithra was viewed as the Good Shepherd, the "Way, the Truth and the Light," the Redeemer, the Savior, the Messiah.
Mithra is omniscient, as he "hears all, sees all, knows all: none can deceive him."
He was identified with both the Lion and the Lamb.
His sacred day was Sunday, "the Lord's Day," hundreds of years before the appearance of Christ.
His religion had a eucharist or "Lord's Supper."
Mithra "sets his marks on the foreheads of his soldiers." Mithraism emphasized baptism.