Answer:
a Greco-Roman periplus written in Koine Greek that describes navigation and trading
They believed in moral education so that kids know what their duties are in society like the pledge of allegiance
People who had originally lived on a chunk of land that wanted to protect what land they had.
Helios threatened to not shine anymore.
Technically Helios threatened to only shine in Hades, among the dead. However, this is the most similar to what happened in the legend. Therefore it is most likely the correct answer.
Greece is the third largest producer of olives
Greece is home to more archeological museums than any other country in the world
Greece is one of the sunniest places in the world