Topic: Tell me a short, interesting fact about

One fascinating fact about the Roman Empire is that it used hydraulic technology, such as aqueducts, to distribute water to public fountains, bathhouses, and private homes. The longest of these aqueducts, the Aqua Marcia, is around 113 kilometers long and was built in 144 BC. It supplied water to the northern part of Rome and was still in use in the 6th century AD, showcasing the remarkable engineering prowess of the Romans.