Um... do you have a link? to this question, because I don't see anything.
Answer:
Constantine had been a pagan before he converted to the Christianity. After Constantine died, his successor Constantinus decided that Byzantine needed his own Pantheon.
It was a wooden-roofed basilica, built on the site of a pagan temple. On the contrary to the popular belief, it was donated by Constantinus II not by Constantine the Great.
Old pagan temples were descructed and the remains of them were used in new Christian structures.
The basic idea was Jnion through religion.
Constantine was the emperor to make christianity the state religion. By building it in Constantinople it was a monument that said 'one religion for rome'.
Three factors fueled American Imperialism.
Economic competition among industrial nations. Political and military competition, including the creation of a strong naval force. A belief in the racial and cultural superiority of people of Anglo-Saxon descent.