Ancient Athens had ostracism [1]. It was against a single person and not against ideas but given that the numbers where smaller and heads carry ideas, it was mo

Ancient Athens had ostracism [1]. It was against a single person and not against ideas but given that the numbers where smaller and heads carry ideas, it was more or less the same thing. [1] https://en.wikipedia.org/wiki/Ostracism https://en.wikipedia.org/wiki/Ostracism