Bardaisan, Syrian astrologer, scholar, and philosopher (d. 222)
Bardaisan (11 July 154 – 222 AD; Syriac: ܒܪ ܕܝܨܢ, Bardaiṣān), known in Arabic as Ibn Daisan (ابن ديصان) and in Latin as Bardesanes, was a Syriac or Parthian gnostic and founder of the Bardaisanites. A scientist, scholar, astrologer, philosopher, hymnographer, and poet, Bardaisan was also renowned for his knowledge of India, on which he wrote a book, now lost.