As the eighth century came to a close...
In the blink of an eye, Adoulin had become a maritime metropolis, its mercantile prowess rivaling even Jeuno's.
Jeuno wasn't any kind of metropolis until the middle of the ninth century. Just ask Maat!

Either it needs to be reworded so that it's clear that Adoulin is being compared to the Jeuno of Kam'lanaut's reign, or a better contemporary comparison might be Tavnazia or Al Zahbi.