Douglas Murray:

The 20th of this month marks a significant anniversary in Britain. For it is the 50th anniversary of what is probably the most famous — and certainly the most notorious — speech by any mainstream politician since the war.

On April 20, 1968, Enoch Powell gave a speech to the Conservative Political Centre in Birmingham on the subject of Commonwealth migration, integration, and possible re-emigration. It was a carefully chosen moment, and a carefully chosen intervention from a man who was then the shadow defense minister in the Conservative opposition of Edward Heath. Powell knew what he was about to do, telling a friend who edited a local newspaper, “I’m going to make a speech at the weekend and it’s going to go up ‘fizz’ like a rocket; but whereas all rockets fall to the earth, this one is going to stay up.” For half a century, Powell’s speech has certainly lingered in some fashion — whether by staying up or by rumbling away underneath Britain’s political debates.