What is cotillion?

"Cotillion" typically refers to a formal ball or dance event, often from the 18th or 19th century, that includes etiquette instruction and social dancing. The term can also refer to a social and etiquette program for young people, especially in the southern United States. Cotillions may involve learning traditional dance steps, proper behavior, and social skills. Participants in cotillion programs often learn proper table manners, introductions, and general social etiquette in addition to dance instruction. Cotillion events are often seen as a way to prepare young people for formal social situations and to foster good manners and social skills.