Alvin Ailey was an American choreographer and dancer who founded the ALVIN Ailey American Dance Theater in 1958. He is widely regarded as one of the most influential choreographers of the 20th century, and his works are still performed around the world today. He is best known for his signature piece, Revelations, which premiered in 1960 and has become a staple of modern dance. Ailey's work was heavily influenced by his African-American heritage, and he was a passionate advocate for civil rights and social justice.