Well my personal opinion is that if Albinos are discriminated against today with the knowledge they have today about how it occurs, I think it is almost certain that they were discriminated against in earlier times if they did not know the nature of albino occurences.

But to say that they were ostracized, rounded up systematically and killed can not be determined without a doubt.

There has to be some form of concrete evidence such as writings or pictures from the same or close to the same time period.

We dont have that so it all is speculation.

Peace