On Feb 14, 2018, Dave Horsfall <dave@horsfall.org> wrote:

Computer pioneer Niklaus Wirth was born on this day in 1934; he basically 
designed ALGOL, one of the most influential languages ever, with just 
about every programming language in use today tracing its roots to it.

Wirth designed many languages, including Euler, Algol W, Pascal, Modula, and Oberon, but he did not design Algol; more specifically, he did not design Algol 60. Instead, a committee (J. W. Backus, F. L. Bauer, J. Green, C. Katz, J. McCarthy, P. Naur, A. J. Perlis, H. Rutishauser, K. Samelson, B. Vauquois, J .H. Wegstein, A. van Wijngaarden, and M. Woodger) designed it, and Peter Naur edited the remarkable Algol 60 specification. A few others, including Edsgar Dijkstra, who completed the first implementation, participated in meetings leading up to the final design.