300 years of guaranteed free speech at Speakers Corner London ended when Tommy Robinson is removed and banned from speaking.

They even let Karl Marx and Lennon speak there in the past.
A Speakers’ Corner is an area where open-air public speaking, debate, and discussion are allowed. The original and most noted is in the northeast corner of Hyde Park in London, UK. Speakers here may talk on any subject, as long as the police consider their speeches lawful.
h/t GatorNelson