The Baptism of Early Virginia: How Christianity Created Race (2012)
— R. A. Goetz

The concept of the "White race" was first explicitly developed and defined in it's current complete (final) form, by the Anglo-Virginian settlers of North America in the 17ᵗʰ century, through Christian inspiration; this was so influential that it defined racial thought in: Enlightenment discourses, all of Europe, 19ᵗʰ century scientific racism; and continues to define race today.

While this is the beginning of the explicit definition, the concept of the White (Adamic) race existed much earlier; some less developed examples include but aren't limited to: the Spanish "limpieza de sangre" & Crusadic Mediaeval Europe; it also existed implicitly (known without saying) throughout all of White history including the founding of Christianity: demonstrated by Jesus Christ's Apostles and disciples, who by command of the Great Commision, preached to all White tribes, excluded all other races & considered this preaching to all of humanity.