Facts about Greece in World War II :

During the World War II, Greece was the only country which had to fight 3 countries continuously , Italy, Albania, Germany.
And it was the country with the most days of resistance - 219 days.

Fact about Greek students:

55% of the youth in Greece, graduate from a full-time, 4 year college.
This is the highest rate worldwide.

Fact about Greek words :
It is estimated that about 13% of the English Dictionary is derived from Greek words.

Greek is probably the language that most influenced other languages around the world. Many English words derive directly from Greek ones, and knowing their origin and meaning is important.

Here are two widely know examples of Greek words.
Acropolis