The one that differentiates Christopher columbus from Bartolomeu Dias is : Columbus planned to reach Asia by sailing west across Atlantic Ocean, while Dias hope to reach Asia by sailing around Africa and through the Indian Ocean.
Hope this helps
It would be "b. Benito Mussolini" who was the fascist leader known as Il Duce, since this is Italian for "the Leader," and Mussolini had almost complete control of the Italian state.
The coloseaum in Rome, could hold up to 60,000 people.
