The Carnival in Rio de Janeiro is a festival held every year before Lent in Brazil. It is considered the world’s biggest carnival. There are about two million people per day on the streets. Rio Carnival marks the beginning of Lent, the forty-day sacrifice period before Easter. The first festival dates back as far as 1723. It is called the ‘world’s largest party’. Rio Carnival celebrations can be traced back to the 18th century. Introduced by the Portuguese immigrants to Brazil, it was called the Entrudo.