Simula is an extension of the ALGOL 60 language, and is the language that introduced to programming the ideas of classes, objects, inheritance, and dynamic binding, making it is the first, original object-oriented language. It was created by Ole-Johan Dahl and Kristen Nygaard at the Norwegian Computing Center (NCC), Oslo, Norway, from 1962 to 1967. Simula is a direct predecessor of the BETA language. Nygaard was on BETA's design team. Simula was one of the direct inspirations for Alan Kay and Smalltalk.