$ whois simula

Simula

first released in 1962 · by Ole-Johan Dahl, Kristen Nygaard

$ guessprog --inspect simula

year: 1962
paradigm: object oriented
family: algol
memory: automatic gc
binding: static
safety: strong

SIMULA(7)

AUTHORS: Ole-Johan Dahl, Kristen Nygaard
HISTORY: Ole-Johan Dahl and Kristen Nygaard developed Simula at the Norwegian Computing Center in Oslo, starting in 1962. They needed a language to describe and run discrete event simulations, and built it as an extension of ALGOL 60. Simula 67 introduced classes, objects, inheritance and virtual procedures, making it the first object-oriented language. Dahl and Nygaard received the Turing Award in 2001 for these ideas, which directly inspired Smalltalk and C++.
USAGE: A historic language with essentially no active use today. It is remembered as the ancestor of object-oriented programming, and Bjarne Stroustrup's experience with it led directly to the design of C++.
SEE ALSO: Simula on Wikipedia ↗

$ cat animals.sim

Begin
   Class Animal; Virtual: Procedure Speak;
   Begin End;
   Animal Class Dog;
   Begin
      Procedure Speak; OutText("Woof");
   End;
   Ref(Animal) Pet;
   Pet :- New Dog;
   Pet.Speak;
   OutImage;
End