The practice of Gladiatorial fights spread fast in Roman tradition. Its origin can be traced back into the munus, in other words., the training of rich and famous characters of sponsoring general public shows during religious holiday breaks, festivals and events. The Emperor Vespasianus built the biggest amphitheater worldwide for gladiatorial games: the Flavian Amphiteatre, better known as the Coliseum. The fights occurred frequently took place between couples of various gladiator types like the myrmillons, the thracians, the secutores, the retiarii, each characterized by his or her own gear and fighting design.