Todi (; Tuder in antiquity) is a town and comune (municipality) of the province of Perugia (region of Umbria) in central Italy. It is perched on a tall two-crested hill overlooking the east bank of the river Tiber, commanding distant views in every direction. It was founded in antiquity by the Umbri, at the border with Etruria; the family of Roman Emperor Trajan came from Todi. In the 1990s, Richard S. Levine, a professor of Architecture at the University of Kentucky, included Todi in academic design exercises aimed at conceiving hypothetical improvements to the city and presented its results in a conference titled "The Sustainable City of the Past and the Sustainable City of the Future". As a result, the Italian press incorrectly reported on Todi as the world's most livable city. History According to the legend, said to have been recorded around 1330 BC by a mythological Quirinus Colonus, Todi was built by Hercules, who here killed Cacus, and gave the city the name of Eclis. Historical Todi was founded by the ancient Italic people of the Umbri, in the 8th-7th century BC, with the name of Tutere. The name means "border", the city being located on the frontier with the Etruscan dominions. It probably was still under the latters' influence when it was conquered by the Romans in 217 BC. According to Silius Italicus, it had a double line of walls that stopped Hannibal himself after his victory at Lake Trasimeno. In most Latin texts, the name of the town took the form Tuder. A notable archeologic find from the Etruscan period is an ancient bronze, the Mars of Todi, discovered in 1835 in the nearby Montesanto; and now at the Gregorian Etruscan section of the Vatican Museums, but a copy is kept in the crypt of the Cathedral. It was the home of Trajan's family, the Ulpi Traiani. Christianity spread to Todi very early, through the efforts of St. Terentianus. Bishop St. Fortunatus became the patron saint of the city for his heroic defence of it during the Gothic siege. In Lombard times, Todi was part of the Duchy of Spoleto. After the 12th century, the city started to expand again: the government was held first by consuls, and then by podestà and a people's captain, some of whom achieved wide fame. In 1244 the new quarters, housing mainly the new artisan classes, were enclosed in a