Given the spelling of 'tragique' I wasn't sure if you were reverting to a French style or not.
As for Caucassian, it's named for the Caucasus Mountains, just as the country is. Indo-European people made a great migration from there across a great deal of the globe. The largest movement was the Celtic movement which preceeded all the others, giving them initial superiority in Europe and even pockets of the middle east/asia minor. Then other groups moved out, including Semites and Indo-Iranians, groups that moved into modern India and merged with the Dravidians (proper Aryans), groups that moved primarily across the Mediterranean (both north and south of the sea), Slavs and other steppe peoples moving straight north, and late arrivals around the Volga and Caspian Sea which chose to wrap around and descend upon Northern Europe (varying waves of Germanics). So any of these groups can be classified as Caucassian although their skin tones changed drastically after the fact.
I'm not really 'smart'. History was my minor and I'm thinking of getting my Masters in it. If you ask me about psychology, especially the more advanced stuff, I can keep conversation, but won't educate much.
