In a lecture delivered in Vienna in 1808, German scholar August Wilhelm Schlegel became the first to perceive in the play a carefully woven unity of disparate elements. Schlegel, who argued that the relationship between Theseus and Hippolyta constitutes the framework of the play's dramatic action, also saw the Pyramus and Thisbe interlude as an integral part of the play's design. Late in the century, Denton J. Snider observed that the structure of the play is based on interrelationships among three distinct worlds, the "real" world of Athens, the imaginary world of the fairy wood, and the world of art represented in the mechanicals' production of Pyramus and Thisbe.