Roman aqueduct
Rome's first aqueduct was built in 312 BC, and supplied a water fountain at the city's cattle market. By the 3rd century AD, the city had eleven aqueducts, sustaining a population of over a million in a water-extravagant economy; most of the water supplied the city's many public baths. Cities and towns throughout the Roman Empire emulated this model, and funded aqueducts as objects of public interest and civic pride, "an expensive yet necessary luxury to which all could, and did, aspire".
Cochituate Aqueduct
The aqueduct formed a key link in Boston's first major water supply system. Its genesis dates to 1845, when a Sudbury River tributary was impounded to form Lake Cochituate in Natick. The artificial lake, with of watershed, of storage, and yield of of water per day, became the cornerstone of Boston's public water system.