So, we know from modern genetics that people from the Caucuses invaded Europe about 9000 years ago. Those Caucasians are the ancestors of most Europeans … aka “white” folks.
However, that migration does not do much to explain skin color. White folks also include Jews, Arabs, Iranians, etc. So, our German friends had a problem. If being white was so much better, than how was it that the Jews, Arabs, and Iranians were not Christians? The answer was “race.” Since Christianity was TRUTH, the inability to see the truth had to be genetic and “Caucasians” had a duty to help the lesser races. Of course Jews, Iranians and Arabs were inferior and needed to be helped. “White mans burden” was invented.
As fas as I know this view of race, that is the idea that there are unique breeds of humans, is not all that old. Presumably, using modern racist classifications we would call the Romans “Caucasians.” But the Romans before Christianity were not, as far as I know, racists. They beat up on and dominated everyone BUT anyone could become Roman.
Then the Romans adopted a religion, Christianity and after the Muslim conquest of Rome, the remnant of Christianity became European civilization. These “white” folks … aka Europeans or Christians even depicted Jesus to look .. well .. Caucasian. The Crusades were fought to liberate Palestine and Constantinople from the Muslims.
The descendants of the immigrants from the Caucuses became the new Romans. Their technology became capable of world domination. The Caucasians saw it as their burden to spread white civilization (aka Christianity).
This came ot be called the “Age of Discovery” … as if Hindu, Aztecs, Iroquois, Incas, Han and other dark skinned peoples needed discovery. In Spain, the the “white folks ” decided that civilization (aka Christianity) had arisen in Europe because of racial superiority. They made laws defining citizenship by race. The Spanish explained the evil of the Jews by the “drop of blood,” that is the Jews were genetically defective and, even if we converted, could not have full rights of an authentic Christian. This same pseudo genetics was used to justify chattle slavery .. the treatment of Black people as cattle as well as the near extermination of indigenous Americans, Jews, aand boriginal South Africans.
it is hard to make a history of racism when there wasn’t any. Look it! In 1453 when the Muslims over ran Constantinople the crusades were mostly over. the fact is the crusaders weakened the city on their last trip to ‘free’ th holy Land. Otherwise it may have been longer before the sheikh had a win over them.
The Crusaders nwere as anti Rome (as in the Eastern church) as they were anything else. Both Islam and Eastern Orthodox were infidels.
The racoism art is inextricably tied to what was happening in Spain where the inquisition made inheritance, a drop of blood, a fact of law.