Osroene

Osroene (also spelled Osrohene, Osrhoene, from the Greek ;  ), also known by the name of its capital city, Edessa (modern Şanlıurfa, Turkey), was a historic kingdom located on the present-day border of Syria and Turkey. The kingdom was AssyrianThe Revival of Spiritual Healing, by Barsom J. Kashish, 2002, p. 217 and enjoyed semi-autonomy to complete independence from the years of 132 BCE to 244 AD.Alexander Roberts & James Donaldson Eds. The Writings of the Fathers Down to AD
325: Ante-Nicene Fathers vol. 8 (Peabody, Massachusetts: Hendrickson Publishers,
1994), 657-672.  
It was a Syriac speaking kingdom,The Ancient Name of Edessa, Amir Harrak,
Journal of Near Eastern Studies, Vol. 51, No. 3 (Jul., 1992), pp. 209-214 https://www.jstor.org/stable/545546 and according to an ancient legend King Abgar V of Edessa was converted to Christianity by Thaddeus of Edessa, or Saint Addai, one of the Seventy-two Disciples.  By 201 AD or earlier, under King Abgar the Great, Osroene became the first Christian state.

 References 

Category:Former countries in the Middle East
Category:Former monarchies of Asia