Colleen Terrans 18 and Dawn Miller 21 riding on the bonnet of the leading car of the South Glamorgan campaign to Keep Britain in Europe.

14 incredible photos of Britain’s 1975 vote to stay in the EU

Back in 1975, Britons had their first chance to ditch membership of the European Economic Union in favour of an isolationist policy in an already international world. Happily, sane heads prevailed in this first-ever national referendum and 67% of people voted remain. Here is how they did it.