In which month does the NFL regular season usually begin?

How many Super Bowl MVP awards did Joe Montana win? What is the nickname of the Pro Football Hall of Fame's jacket given to inductees? Where is the annual Hall of Fame Game played to open the NFL preseason? In which month is the NFL Draft usually held? In which month is the Super Bowl now played? What is the name of the NFL's all-star game? In which city was Super Bowl I played? Which head coach led the Green Bay Packers to victory in Super Bowl I?