Maria Hors (1921-2015), the iconic Greek choreographer who was responsible for the ceremony of the Lighting of the Olympic Flame during a period of 50 years, choreographed more than 120 performances of 30 ancient tragedies. She was the permanent choreographer at the National Theater and also, she taught dance, expressive movement, and improvisation at its Drama School. She also taught at the Theater Workshop of Spyros Evaggelatos, at the Workshop of the Opera Theater and the Athens Conservatory. In 1961 Maria Hors created the dance sections for Cherubini's Medea with Maria Callas' astonishing performance in the title role. Alexis Minotis directed, and Yiannis Tsarouchis did the set design for the opera. It was performed in the theater of Epidaurus and at La Scala in Milan.