Roman technology is the engineering practice which supported Roman civilization and made the expansion of Roman commerce and Roman military possible over nearly a thousand years, if the Byzantine Empire is included. The Roman Empire had one of the most advanced set of technologies of its time, some of which was lost during the turbulent eras of Late Antiquity and the early Middle Ages. Gradually, some of the technological feats of the Romans were rediscovered and/or improved upon, while others went ahead of what the Romans had done during the Middle Ages and the beginning of the Modern Era. Several Roman technological feats in different areas like civil engineering, construction materials, transport technology, and some inventions such as the mechanical reaper, were surprising achievements until the 19th century, and some, such as the arch, have remained untouched to this day.[citation needed] The Romans achieved high levels of technology in large part because they borrowed heavily from and absorbed the culture of the established Hellenised people of the Mediterranean basin.[citation needed]

1. ROMAN TECHNOLOGY

2. CARRETERAS

3. AGRICULTURA The Romans developed a sophisticated agriculture, improved the technology of the work with iron and of masonry.

4. http://es.wikipedia.org/wiki/Historia_de_la_tecnolog%C3%ADa#Roma

5. INVENTIONS + concrete