Every February & March in many places in the world, “Carnival” takes place. This is the season before the Christian season of Lent. Rio de Janeiro & Reufe, Brazil, Venice, Italy, and Columbia hold the largest celebrations.
Wearing costumes, historically the festival was to express social unity. Masks hid the identity & social class of the wearer, so that for a brief time, everyone was equal.
(photos: Carnival 18th century (right), and today (left))