In what year was Super Bowl XVIII played?

Which team did the Los Angeles Raiders defeat in Super Bowl XVIII? Marcus Allen was named MVP of which Super Bowl? In which city was Super Bowl XVIII played? Which head coach led the Los Angeles Raiders to victory in Super Bowl XVIII? Which team did the San Francisco 49ers defeat in Super Bowl XIX? Who was named MVP of Super Bowl XIX? In which city was Super Bowl XIX played? Which head coach led the San Francisco 49ers to victory in Super Bowl XIX?