These varieties cover the historical region of Transylvania, except several large areas along the edges towards the neighboring dialects.
The Transylvanian varieties are part of the northern group of Romanian dialects, along with Moldavian and Banat.
In 1908, Gustav Weigand used phonetic differences and reached the conclusion that the Romanian in Transylvania was a mosaic of transition varieties.
However, Moldavia and Wallachia were relatively recently colonized, which led to a remarkable dialectal unity in both regions.
[3] As a group, all Transylvanian varieties share a small number of common phonetic features: