Answer:
society and art are mirrors of each other
popular art will usually reflect popular beliefs
for example
The United States government was founded on Greek + Roman governments, and soon after, art and architecture started resembling that of Greece and Rome (just look @ any building in DC-they look greek)
&
Luminism was a period of art after a strong religious revival in America- people were being drawn closer to God, and their paintings became more peaceful-looking. They had hazy skies, calm water, and almost divine lighting
hope this helps :D