How does this artifact illustrate a contribution of the byzantine empire?

The painting shown here is known as the 'Virgin Mary with Emperor John II Komnenos and Empress Irene'. Most of the mosaics of the Byzantine Empire is present in Hagia Sophia.

This mosaic illustration shown shows the influence of Christianity within the empire where faith and administration were more connected in the Byzantine Empire than in the west. The Role of the Eastern Orthodox Church in the Empire is more prominent. The Byzantines saw their emperor not just as the head of the kingdom but as the living representative of God or holy figure.

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on