Vaslav or Vatslav Nijinsky was a Russian ballet dancer and choreographer of Polish ancestry. He is regarded as the greatest male dancer of the early 20th century. He is often associated with the Ballets Russes and its impresario Sergei Diaghilev, for which he choreographed such influential ballets as L'après-midi d'un faune (1912), Le Sacre du Printemps (1913), Jeux (1913), and Till Eulenspiegel (1916). He was celebrated for his virtuosity and for the depth and intensity of his characterizations. He could dance en pointe, a rare skill among male dancers at the time, and was admired for his seemingly gravity-defying leaps.