text: This period sought the revival of classical art forms, including Greek drama and music. Opera, in its modern European form, had its roots in attempts to recreate the combination of singing and dancing with theatre thought to be the Greek norm. Examples of this appeal to classicism included Dante, Petrarch, and Shakespeare in poetry and theatre. Tudor drama, in particular, modeled itself after classical ideals and divided works into Tragedy and Comedy. Studying Ancient Greek became regarded as essential for a well-rounded education in the liberal arts.
  The Renaissance also explicitly returned to architectural models and techniques associated with Greek and Roman antiquity, including the golden rectangle as a key proportion for buildings, the classical orders of columns, as well as a host of ornament and detail associated with Greek and Roman architecture. They also began reviving plastic arts such as bronze casting for sculpture, and used the classical naturalism as the foundation of drawing, painting and sculpture.
  The Age of Enlightenment identified itself with a vision of antiquity which, while continuous with the classicism of the previous century, was shaken by the physics of Sir Isaac Newton, the improvements in machinery and measurement, and a sense of liberation which they saw as being present in the Greek civilization, particularly in its struggles against the Persian Empire. The ornate, organic, and complexly integrated forms of the baroque were to give way to a series of movements that regarded themselves expressly as "classical" or "neo-classical", or would rapidly be labelled as such. For example, the painting of Jacques-Louis David was seen as an attempt to return to formal balance, clarity, manliness, and vigor in art.