A history of vaccinations

Where did the anti-vaccination movement come from?

If that was too complicated, try this, from Penn and Teller:

I remember being sick with chicken pox when I was little. That was more than 50 years ago, when vaccines weren’t a routine part of growing up. Chicken pox sucks.

My kid’s vaccines were always up to date. He never was sick as I was.

I agree with Penn.