It's believed that the first gladiatorial duels were held in the 3rd century BC, as part of the funeral rites of warriors and wealthy nobles. Slaves or condemned prisoners would fight to the death as a tribute to the fallen patrician.
How did gladiatorial combat begin?
Gladiatorial bouts were originally part of funeral ceremonies. Many ancient chroniclers described the Roman games as an import from the Etruscans, but most historians now argue that gladiator fights got their start as a blood rite staged at the funerals of wealthy nobles.
What year did gladiators fight in the Colosseum?
Gladiator Fights Started in the Colosseum
By 174 B.C., it was relatively commonplace to have matches across the city, and the idea was boosted further by Julius Caesar, who engaged hundreds of gladiators to fight in memory of his deceased father and daughter.