Step 1 : Introduction to the question "Which yearly celebration claims the title "the biggest carnival in the world"?"
There is a special order that every school has to follow with their parade entries. Each school begins with the "comissão de frente" ("Front Commission" in English), that is the group of people from the school that appear first. Made of ten to fifteen people, the "comissão de frente" introduces the school and sets the mood and style of their presentation. These people have choreographed dances in fancy costumes that usually tell a short story. Following the "comissão de frente" is the first float of the samba school, called "abre-alas" ("Opening Wing" in English). These are followed by the Mestre-sala and Porta-Bandeira ("Master of Ceremonies and Flag Bearer" in English), with one to 4 pairs, one active and 3 reserve, to lead the dancers, which include the old guard veterans and the "ala das baianas"
Step 2 : Answer to the question "Which yearly celebration claims the title "the biggest carnival in the world"?"
Carnival in Rio de Janeiro:
Rio's Carnival takes place before Lent every year and many proclaim it the biggest, grandest carnival in the world. The streets of Rio de Janeiro flood with about two million people during the annual one-day event. Carnival marks the conclusion of an intense dance competition between rival samba schools. Each school must have an overall theme and enter six to eight floats as part of the competition. Thousands of participants may represent one school. Source: TravelChannel.com