The Brazilian carnival (Carnaval, in Portuguese) is an annual celebration held 40 days before Easter and marking the beginning of Lent. Rio de Janeiro has many Carnival choices, including the famous Samba school (Escolas de Samba) parades in the Sambódromo exhibition centre and the popular blocos de carnaval, which parade in almost every corner of the city. In 1840, the first Carnaval was celebrated with a masked ball. As years passed, adorned floats and costumed revelers became a tradition amongst the celebrants. Carnaval is known as a historic root of Brazilian music.