The Imperial Dancing Academy connected with La Scala in Milan was opened in 1812. Its greatest period began when Carlo Blasis, Italian dancer and teacher, became its director in 1837. Blasis published two textbooks, Treatise on the Art of Dancing and Code of Terpischore, in which he codified his teaching methods and all that was known of ballet technique. These books form the basis of our modern classical training. Blasis trained most of the famous Italian dancers ot the era, and his pupil Giovanni Lepri was the teacher of Enrico Cecchetti, one of the greatest teachers in the history of ballet. It was Cecchetti who brought the Italian School to its peak. The Italian School was known for its strong, brilliant technique and the virtuosity of its dancers, who astonished the audience with their difficult steps and brilliant turns.