preserved in inscriptions found by the 1990s, 74% (c. 2,200) were Latin, 14% (c. 420) were Greek, 4% (c. 120) were Illyrian, 2.3% (c. 70) were Celtic, 2% (c. 60) were Thraco-Dacian, and another 2% (c. 60) were Semites from Syria. Regardless of their place of origin, the settlers and colonists were a physical manifestation of Roman civilisation and imperial culture, bringing with them the most effective Romanizing mechanism: the use of Latin as the new lingua franca. The first settlement at Sarmizegetusa was made up of Roman citizens who had retired from their legions. Based upon the location of names scattered throughout the province, it has been argued that, although places of origin are hardly ever noted in epigraphs, a large percentage of colonists originated from Noricum and western Pannonia. Specialist miners (the Pirusti tribesmen) were brought in from Dalmatia. Although the Romans conquered and destroyed the ancient Kingdom of Dacia, a large remainder of the land remained outside of Roman Imperial authority. Additionally, the conquest changed the balance of power in the region and was the catalyst for a renewed alliance of Germanic and Celtic tribes and kingdoms against the Roman Empire. However, the material advantages of the Roman Imperial system was attractive to the surviving aristocracy. Afterwards, many of the Dacians became Romanised (see also Origin of Romanians). In AD 183, war broke out in Dacia: few details are available, but it appears two future contenders for the throne of emperor Commodus, Clodius Albinus and Pescennius Niger, both distinguished themselves in the campaign. According to Lactantius, the Roman emperor Decius (AD 249–251) had to restore Roman Dacia from the Carpo-Dacians of Zosimus "having undertaken an expedition against the Carpi, who had then possessed themselves of Dacia and Moesia". Even so, the Germanic and Celtic kingdoms, particularly the Gothic tribes, slowly moved toward the Dacian borders, and within a generation were making assaults on the province. Ultimately, the Goths succeeded in dislodging the Romans and restoring the "independence" of Dacia following Emperor Aurelian's withdrawal, in 275. In AD 268–269, at Naissus, Claudius II (Gothicus Maximus) obtained a decisive victory over the Goths. Since at that time Romans were still occupying Roman Dacia it is assumed that the Goths didn't cross the Danube from the Roman province. The Goths who survived their defeat didn't even attempt to escape through Dacia, but through Thrace. At the boundaries of Roman Dacia,