Nope. The first referendum was in 1975, after we had joined in 1973. It was about if we should remain, or leave; not about if we should join.
> The Conservative Prime Minister Edward Heath brought the United Kingdom into the European Economic Community (EEC)in 1973, and voters ratified the decision in a referendum two years later.
I think it's just a typo, and he meant 1975
Nope. The first referendum was in 1975, after we had joined in 1973. It was about if we should remain, or leave; not about if we should join.