Sarmizegetusa

Sarmizegetusa (also Sarmisegetusa, Sarmisegethusa, Sarmisegethuza, Ζαρμιζεγεθούσα (Zarmizegethousa), Ζερμιζεγεθούση (Zermizegethouse)) was the most important Dacian military, religious and political centre. Erected on top of a 1,200 meters high mountain , the fortress was the core of the strategic defensive system in the Orăştie Mountains (in present-day Romania), comprising six citadels.

The fortress, a quadrilateral formed by massive stone blocks (murus dacicus), was constructed on five terraces, on an area of almost 30,000 m². Sarmizegetusa also had a sacred precinct—among the most important and largest circular and rectangular Dacian sanctuaries the famous Circular Calendar Sanctuary is included.

The civilians lived around the fortress, down the mountain on man-made terraces. Dacian nobility had flowing water, brought through ceramic pipes, in their residences. The archaeological inventory found at the site shows that Dacian society had a high standard of living.

The Dacian capital reached its acme under King Decebal who fought two wars against the Emperor Trajan of the Roman Empire in 101-102, the first successfully repelling the Roman invaders, and again in 105-106, the second culminating in the Battle of Sarmisegetusa, and the defeat of the Dacians. The Roman conquerors established a military garrison there. Later, the capital of Roman Dacia was named after the Dacian capital - Colonia Ulpia Traiana Augusta Dacica Sarmizegetusa, established 40 km from the ruined Dacian capital.