Gladiators were usually slaves, criminals, or prisoners of war—the Romans knew that the best way to orchestrate a fight to the death was to use men who have nothing to lose.
A. Gladiator
By 750 B.C., the Polis or city-state, became the central focus of Greek life.
By 2000, 200 countries held multi party elections, globalization and increased connectivity among states, greater awareness among different peoples. Also the role of the media was very important in spreading news about democracy.
Historical themes help us study history by giving us an idea of what the time period or event being studied was about.