Segeda

Segeda was the largest pre-Roman settlement in northern Iberia, spanning over 45 hectares between Belmonte de Gracian and Mara in Zaragoza, Aragon. A Celtiberian city of the Belli tribe, its expansion of defensive walls in 154 BC violated the Gracchus treaty of 179 BC, triggering the Second Celtiberian War and prompting Rome to move the consular year start to January 1st. Excavations since 1986 revealed multi-story terraced residences, a 283 sq m mansion with Greek-influenced bathing implements, wine-pressing equipment, and a possible astronomical sanctuary aligned to lunar and solar cycles.