Rome not only seized the lands of those countries they conquered, but adopted many of the cultural leanings of those countries. This was particularly so with Greece. Greece was rich in architecture, philosophy, literature, art and religion. (Morey, 1901)
Greek column design was adopted by Rome and used in their architecture, including the pantheon. Because there was an abundance of Greek art, the Roman’s used it to decorate their buildings and probably the homes of the aristocracy.
The presence of Greek philosophy and literature grew in Rome through the influence of the people captured into slavery. Many of these citizens were educated and civilized. They became the teachers to the Roman youth.
The Greek and Roman Gods were the same