I've used Algol-60 at school
I did my AO-Level Computer Studies in 1983 it 1983 or 1982 (can't remember!) and I did my project in Algol-60. Because that's what we ran on our Research Machines 380Zs. It was a program to solve the N-Queens problem, using the process of making different permutations of the numbers 1-N, and I did it using recursion (because I could). Little did I realise at the time that it was really out of date, and there's no reason we couldn't have done it in Pascal or C. But that's all we had.