Prometheus to be substantially discounted in preference to his own concerns for promoting his own version of an idealized consciousness of a society guided by the precepts of High British Romanticism and High British Idealism. "Frankenstein; or, the Modern Prometheus", written by Mary Shelley when she was 18, was published in 1818, two years before Percy Shelley's above mentioned play. It has endured as one of the most frequently revisited literary themes in twentieth century film and popular reception with few rivals for its sheer popularity among even established literary works of art. The primary theme is a parallel to the
Prometheus Unbound (Shelley) which allows Prometheus to be released. Shelley's play is a closet drama, meaning it was not intended to be produced on the stage. In the tradition of Romantic poetry, Shelley wrote for the imagination, intending his play's stage to reside in the imaginations of his readers. However, the play is filled with suspense, mystery and other dramatic effects that make it, in theory, performable. Mary Shelley, in a letter on 5 September 1818, was the first to describe her husband Percy Shelley's writing of "Prometheus Unbound". On 22 September 1818, Shelley, while in Padua, wrote to Mary, who was at