My father, Shahrokh Vafadari, who has died aged 89, was a prominent member of the Zoroastrian Iranian community in the UK.
After retiring from his job as a chemical engineer in 1992 he devoted himself to promoting the Zoroastrian faith and Iranian culture to anyone who was interested. He became an academic authority on the evolution of the Zoroastrian calendar, and was chosen by Robert Winston as an adviser on Zoroastrianism for his 2005 television series The Story of God, escorting Winston to Iran for its filming.
