A number of these settlements were Thracian and Dacian, but some were Celtic, Greek, Roman, Paeonian, or Persian.
A number of cities in Thrace and Dacia were built on or close to the sites of preexisting Dacian or Thracian settlements.
Some of the Dacian settlements and fortresses employed the traditional Murus Dacicus construction technique.
The Dacians, Getae and their kings were always considered as Thracians by the ancients (Dio Cassius, Trogus Pompeius, Appian, Strabo, Herodotus and Pliny the Elder) and were said to speak the same language.
[5] Such lexical differentiation -dava vs. para, would be hardly enough evidence to separate Dacian from Thracian, thus they are classified as dialects.