The following like has some articles on Autism in different cultures.
I just want to point out that even Autism can be viewed differently by different people. I think this becomes even more variable with Aspergers and mild Autism since it can be more visible in some environments than in others- depending on the demands and expectations of that society. A child labeled with a disability in one society may never have a diagnosis or even stand out from the crowd in another. I think one reason the increasing incidence of certain conditions is that the demands of society and the workplace now is different then it was lets say 200 years ago. Also there are differences in what is required to thrive in an agrarian, an industrial, a post-industrial, or a high tech society.