Catholic history of Mardi Gras, Fat Tuesday, Lent and Ash Wednesday

Watch the video and answer these questions:
1-When did Mardi Gras celebrations start in New Orleans? What's the most popular type of entertainment?
2-What is the origin of the term 'carnival'? Can you explain the origin of the celebration?
3-Why do people in Venice cover their faces with masks?
4-Apart from the European, what other cultures have influenced Carnival in Brazil?
5- What does Mardi Gras mean?