Athens was the great Greek cultural center but what modern day nation was a key region of Greek civilization

Italy

Explanation:

Greece is a known which has a rich cultural heritage and is known for its abundant culture and gods. The Greeks however settled in some parts of Southern Italy most notably Sicily. They were responsible in colonizing Italy and helped develop the place through human and mental resources. Some Italians are known to have ancestral Greek ties.This makes Italy the modern country which is a key region of Greek civilization.

ummm? is that supposed to be a question or a but this is a reason he won re-election

explanation:

"despite progress in the war, lincoln and most political pundits were convinced that he would lose his bid for reelection in 1864. the country was war weary and the democratic party's nominee, george mcclellan, was likely to negotiate a peace treaty with the confederacy if elected." - loc.gov