Common Romanian, also known as Ancient Romanian, or Proto-Romanian, is a comparatively reconstructed Romance language evolved from Vulgar Latin and considered to have been spoken by the ancestors of today's Romanians, Aromanians, Megleno-Romanians, Istro-Romanians and related Balkan Latin peoples between the 6th or 7th century AD and the 10th or 11th centuries AD. The evidence for this can be found in the fact that Romanian, Aromanian, Megleno-Romanian, and Istro-Romanian share with each other their main language innovations comparative to Vulgar Latin on one hand, and distinctive from the other Romance languages on the other, according to Romanian linguist Marius Sala. Wikipedia