Why might the modern world be interested in the history, culture, and civilizations of ancient Greece?

A possible answer could be:

Modern society owes a lot to the ancient Greeks. The lives that they led, their belief system, and even the way they created buildings have left lasting impressions that can still be seen today. For many, ancient Greece is considered to be the cradle of Western civilization. Greek art has had a tremendous influence on the world around us. Think about how many places pillars can be seen in architecture: This is a contribution from the Greeks. The Parthenon is a great example of this style of architecture, and when comparing this structure to something like the White House, the similarities are striking. Outside of architecture, Greek theater is something else that continues to influence the modern world, as the two major genres of theater, comedy and tragedy, were created by the Greeks, forming the basis of modern plays, movies, and TV shows. Today, some art from ancient Greece is still around, including pottery, which gives some indication of what life in Greece may have been like and offers insight into their religious beliefs, including mythology.

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the three answers (for plato at least) are:

b-condemned sola fida 

d-set rules for establishing seminaries and for educating clerics in the seminaries 

f-recommended moderation in the sale of indulgences and banned the sale of false indulgences