I don't think there's a person who created more programming languages that I used than Wirth: Pascal, Modula, and Oberon; maybe Guy Steele, depending on what you count;
Wirth is also famous for Wirth's law: software becomes slower more rapidly than hardware becomes faster;
He received the 1984 Turing Award, and had an asteroid named after him in 1999; Wirth died at the age of 89;
