Sanding (dance) the box of rosin before matches to improve his grip. Sims' popularity as a tap dancer and career at the Apollo certainly made him one of the most if not the most influential sand-dancer of all time. Sand dancing was also used by the popular comedic vaudeville trio, Wilson, Keppel and Betty. They spread sand over the stage in one of their most well-known numbers, "Sand Dance". In their performance, there was no allusion to African American heritage; rather to the sandy environs of Egypt, a clear inspiration for their number. In spite of this deviation from the African American
Irish dance number of organisations promoted and codified the various forms of dance, creating competitive structures and standardised styles. Solo Irish dance includes the most well-known form of Irish dance, Irish step dance, which was popularised from 1994 onwards by dance shows such as Riverdance, and which is practised competitively across the Irish diaspora. Step dance is characterised by the rigid upper body and intricate footwork of its performers. Other forms of solo Irish dance include sean-nós dance, a relaxed and social dance style involving improvised steps, and festival Irish dance, a style which separated from step dance in the mid-20th century.