More gladiators fought in southern Italy than in Rome
The idea of gladiatorial fights came from Campania, the area of Italy around the city of Naples. For hundreds of years, the gladiatorial schools in Campania were known to produce the best-trained gladiators and to have more gladiators than anywhere else. One school had over 5,000 gladiators training at one time.
from "100 Facts about Gladiators" by Rupert Matthews
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