It's hard to define a decisive turning point in Greek history as there were many.
However, one that really might stand out apart from the rest was their wars with the Persians. They were successful in their defence against a Persian invasion, an invasion of an empire that was drastically bigger than the combined Greek lands.
<span>Correct one Is D, All the above</span>
This is true. The British army was much larger and much more developed, but the colonial army managed to win by winning the support of the people and of foreigners. They were helped by British enemies such as France who was willing to give not only weapons and money, but also its navy and its generals with their war expertise.
It was mainly around the years of 1630 I believe.