This is the genealogy of the programming language Simula:

Simula is a child of Algol.
Simula was born in year 1964.
It became Simula 67 in year 1967.
Then it begat Smalltalk in year 1969.
Then it begat C with Classes in year 1980.
Then it begat Eiffel in year 1986.

This genealogy is brought to you by the Programming Languages Genealogy Project.