I’m very new here, so I’m not sure how everything works yet, but I have been thinking about this scenario for a personal project of mine.
In this alternate history, there is a river running from mainland Africa to present day Tunisia. This makes the area very fertile for farming and attracts people to settle down on the riverside.
In time a river-valley civilization would be born, but my question is what would you think it be like and how would this affect all the other cultures in North-Africa as well?
And as a wollow-up I wonder in what circumstances could this civilization become like some of the European countries if it were to be conquered by Rome?