Of course, people back then were not autistic. They were just (family examples): *Building a family tree many hundreds of years back *Walking encyclopedia in STEM, astronomy, and music. *Making an automotive encyclopedia and needing to get pictures and information about every car manufactured in 2 pieces a hundred years ago It is just perfectly normal behavior, with only social interaction to do this "hobby". It definitely was not an Autism spectrum disorder (ASD) autisticthreads