The Fête du Costume (Costume Festival) started in 1903, instigated by Frédéric Mistral (a famous French writer from the South of France) when he created the Festo Vierginenco (Festival of Virgins).
Young girls were invited to wear the dress and hair ribbon as a symbol of their pas-sage into adulthood (up to the age of 15 they could only wear the "Mireille" costume).
Concerned about the future of the Arlesian dress, Mistral wanted to officialise it and make sure that wearing it was considered not just a symbol but also an honour and an occasion. In 1903, 18 young women responded to his plea. In 1904, there were 350 girls and the festi-val moved to the Théâtre Antique (an ancient Roman theatre).