Roman Achievements: Aqueducts and Concrete
The Romans made many achievements in different fields, one of them being architecture. Roman concrete was made a unique way that made it stronger than modern day concrete. Many concrete structures still stand today. Roman concrete was made with volcanic ash called pozzolana, and when it was mixed with limestone, other materials (like small bits of rock) to form concrete, and salt water, the chemical reaction made a supremely strong bond compared to modern concrete. One of the structures that probably would have used concrete in the building process was aqueducts, which brought water directly to the cities for fountains where people got drinking water and other locations. Bridges were built over valleys to carry the water across and pipes carried the water, but unfortunately many of these were made with lead, although some were ceramic or stone.