Answer:
A major cultural contribution of the Byzantine Empire that means a picture made of many cubes of marble or glass is the mosaic.
Step-by-step explanation:
A mosaic is a piece of art made by assembling small pieces of either colored glass, marble, or other materials, that forms a picture. Mosaics were one of the most popular forms of art in the Byzantine Empire, s they were used to depict religious subjects and different scenes of the Bible on the interior of churches. Later on, and due to the big influence mosaics had on Byzantine's communities, they started to be used to depict any sort of subjects, including non-religious ones. Even after the fall of the Byzantine Empire, several of its original mosaics were still preserved and they became one of the major cultural contributions of the Byzantine Empire, even influencing other cultures such as the Muslim Art and the Ottoman Empire.