Carnival is a festive season that takes place before Lent, usually in February. It involves public celebrations and parades with elements of circus performances and masks. Carnival originated from ancient Roman and Greek festivals like the Bacchanalia and Saturnalia. The most famous Carnival celebration is in Cadiz, Spain, where people dress up in costumes and participate in parades with musical groups like chirigotas, choirs, comparsas, and quartets through the streets. Carnival allows all people of Cadiz to celebrate through song and dance in the days leading up to Lent.