and 148 AD. [ 2 ]   http://www.youtube.com/watch?v=8qGCadrIDaU&NR=1   Ethno-linguistic affiliation The Carpi are believed by modern historians to have been a tribe of the Dacian nation (ethno-linguistic group) [ 3 ] . The Roman imperial-era sources refer to three groups, the Daci, Costoboci and Carpi , as residing in "Dacia"