
To this day, the Romans are admired for their technological know-how and massive, well-designed public works projects. Readers learn how the Romans ensured a clean water supply for their cities, used volcanic ash to make long-lasting concrete, created the world's first professional...

To this day, the Romans are admired for their technological know-how and massive, well-designed public works projects. Readers learn how the Romans ensured a clean water supply for their cities, used volcanic ash to make long-lasting concrete, created the world's first professional...