Battle of Cannae supreme example of generalship, never bettered in history... and it set the lines of military tactics for 2,000 years". Hannibal's double envelopment at Cannae is often viewed as one of the greatest battlefield maneuvers in history, and is cited as the first successful use of the pincer movement within the Western world to be recorded in detail. Apart from being one of the greatest defeats inflicted on Roman arms, Cannae represents the archetypal battle of annihilation, a strategy whose successful implementation has been rare in modern history. As Dwight D. Eisenhower, the Supreme Commander of the Allied Expeditionary Force in
Sanitation in ancient Rome sanitation artifacts of the ancient world. Most sources believe it was built during the reign of the three Etruscan kings in the sixth century BC. This "greatest sewer" of Rome was originally built to drain the low-lying land around the Forum. It is not known how effective the sewers were, especially in removing excrement. From very early times the Romans, in imitation of the Etruscans, built underground channels to drain rainwater that might otherwise wash away precious topsoil, used ditches to drain swamps (such as the Pontine Marshes), and dug subterranean channels to drain marshy areas. Over time, the Romans