Can you name one thing society, in general, got wrong in the past and has thankfully outgrown?

Wow. That is a list.

Accepting slavery.

Incarcerating Japanese American citizens in WWII.

Burning witches.

Jailing homosexuals.

Denying women's right to vote.

Taking land by force.

Persecuting nudist (oh wait we still do that)

Excellent list. Thank you. :)