Answer: True
Explanation: Early Christianity is portrayed by flat two-dimensional representations of Christ, the Virgin, or saints, emphasizing an eschatological, therefore heavenly character, where a third dimension was not needed to illustrate the humanistic approach, which as such was not required in eschatological depiction.
The Carolingian period known as the Carolingian Renaissance, a cultural upheaval, a return to classical art combined with Christianity by Charlemagne, King of the Franks. Because of the humanistic approach, it was necessary to emphasize space, perspective, so they introduced a third dimension, thus linking it to classical art.
