Gyzis's Secret School was one of five of his works to be included in the 1888 annual Panhellenic Exposition of Athens. A reviewer mentions Gyzis's Greek School at the Time of Slavery,31 which, since no other work by Gyzis deals with a similar subject, must be Secret School.32 What is quite intriguing is the fact that even though the myth was well-established by the time of the exposition, there do not seem to be any other references to the painting in the press. By 1900, however, the painting was well on its way to becoming a national icon. That year, inspired by Gyzis's painting, the poet Ioannis Polemis (1862–1924) wrote "The Secret School,"33 which, through its inclusion in school textbooks, served to further perpetuate the myth.