Classicism, has come to several meaning. The term 'Classicism' or 'Classical' originally was used when referring to the art of ancient Greece. Later it included all works created until the fall of Rome. Still later, Classicism and Neoclassicism, also referred to historical tradition or aesthetic attitudes based on the art of Greece and Rome in antiquity. Though sometimes the terms Classicism and Neoclassicism are used interchangeably, in the context of the tradition Classicism refers either to the art produced in antiquity or to later art inspired by that of antiquity, and Neoclassicism refers to the art produced later but inspired by antiquity. Today, 'Classical' is used to describe perfection of form, with an emphasis on harmony. It is applied to representational works which are idealistic.