The Ancient Native City Hidden Beneath America – And Why Scientists Think It Was Once One Of The Largest Settlements North Of Mexico

Paris was somewhat larger.

Rome, which had been one of the largest cities in the Western world during the classical period, had declined to perhaps 30,000 to 50,000 people by the medieval era.

The cities of the Islamic world — Baghdad, Cairo, Cordoba — were the genuine megacities of the period, with populations in the hundreds of thousands.

Cahokia was not in that league.

But it was comparable to the largest European cities of its time, and it was vastly larger than anything else in North America north of the great centers of Mesoamerica.