Caracalla was himself a North African and had recently extended Roman citizenship to the inhabitants of Rome 's provinces .
It was built in 217 by the city 's governor , Marcus Aurelius Sebastenus , to honour the emperor Caracalla and his mother Julia Domna .
emperor was himself a North African and had recently extended Roman citizenship to the inhabitants of Rome 's provinces .
It was built in 217 by the city 's governor , Marcus Aurelius Sebastenus , to honour the emperor Caracalla and his mother Julia Domna .