 After the Rebellion of Queen Zenobia in 275, Roman countermeasures included the construction of a fort (Tetrarchic castellum) that housed a military garrison.As Roman influence in the area gradually diminished, the area once again became a rural village.During the 5th and 6th centuries, Umm el-Jimal prospered as a farming and trading town in which the population jumped to an estimated 4,000-6,000 people.