- Smalltalk has closures, based on Lisp and Simula67. Squeak is the modern implementation
- Modern OOPLs are Java, C# (both inspired by C++), Dylan (inspired by CLOS), and Python (inspired by Smalltalk).
- Ruby more than Python is an example of a modern OOPL, also Squeak.
- Some common examples
- Smalltalk, Java, C#, Ruby