History 

• Started out for simulation of complex man machine systems, but was soon realized that it was suitable for all complex programming projects.
  
                                       
   
• SIMULA I (1962-65) and Simula 67 (1967) were the first two object-oriented languages.
     
• Developed at the Norwegian Computing Center, Oslo, Norway by Ole-Johan Dahl and Kristen Nygaard.
   
• Simula 67 introduced most of the key concepts of object-oriented programming: objects and classes, subclasses (“inheritance”), virtual procedures.
   
• Alan Kay, Adele Goldberg and colleagues at Xerox PARC extend the ideas of Simula in developing Smalltalk (1970’s).

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