I don’t understand why self is placed in the list instead of smalltalk. Smalltalk came first, and Alan Key was the one who invented the “OOP” name.

Also ML is seen as a child of Lisp.

They should be placed alongside each other, because Self OOP model is quite different from Smalltalk, including how the graphical programming experience feels like.

For those that never seen it, there are some old videos (taken from VHS) on the language site, https://selflanguage.org/