[William Terrell]

Root races are generally refered to using their skin color. There are other differences.

Fringes have mixed. The vast population of each people hasn't. It's clear enough from observation.

[Cronos]

Root races are generally refered to using their skin color. There are other differences. Fringes have mixed. The vast population of each people hasn't. It's clear enough from observation.

True, but that doesn't clarify the point about the "white" Caucasian race. The Iranis and Indians are Aryanic groups and nearly totally Caucasian, yet their skin colors vary. In Europe, the skin tone also varies with region and with season. So, how can you:
a. Say that Caucasian = white when there are shades of black and brown amongst them and
b. say that white/Caucasian is purely European when the number of Caucasians in Europe is about half a billion and the number of Caucasians in Asia is around 1.5 billion?

That brings me to another pet peeve of mine, Europe as a separate continent? It's racially, culturally and linguistically part of the vast Caucasian continent stretching from India to Ireland. Geographically, the Urals may separate part of it from Asia, but don't the Himalayas and Iranian plateau separate Iran and the Indian sub continent from Asia too? Daft, geographically it's more apt to call the entire land mass from Ireland to Japan as Eurasia. Culturally and civilisationally it does have separate groups such as Celtic, Western European, Eastern European, Islamic-Turkic, Islamic-Arabic, Islamic-Persian, Indian, Central Asian (actually part of the Turkic or Persian civs), Chinese, Japanese etc.