There are many classical dance forms in Cambodia, of which a highly stylized art form was once confined mainly to the courts of the royal palace and performed mainly by females. Known formally in Khmer as Robam Apsara, the dancers of this classical form are often referred to as Apsara dancers.This dance form was first introduced to foreign countries and best known during the 1960s as the Khmer Royal Ballet. The first royal ballerina was Princess Norodom Bopha Devi, a daughter of King Norodom Sihanouk.The Apsara Dance is particularly inspired by the style from around more than a thousand Apsara carvings in the Angkor temple complex. As evidenced in part by these Apsaras (celestial dancers), dance has been part of the Khmer culture for more than a millennium.A visit to Cambodia is only complete when one has attended at least one such traditional dance performance.