Back in 1975, Britons had their first chance to ditch membership in a European Economic Union in favour of an isolationist policy in an already international world. Sane heads prevailed in this first-ever national referendum and 67% of the votes were for remaining in the Economic Zone.
Staying in the EEC was no obvious choice for the then ruling Labour minority government. Concerns over the EEC included the price of wood within the EEC as opposed to trade within the Commonwealth, the government’s ability to sovereignly practice “socialist” politics et cetera. The whole process is very much worth a read on Wikipedia.
However, let’s take a couple minutes for a photographic look back at the political season leading up to the 1975 referendum.