<span>Their translation of ancient Greek writings preserved ancient knowledge.
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So we know when certain things in history took place. Its hard somtimes to remember/memorize all the dates, but timelines do help.
Hope this helps :D
Answer is A.... its designed to regulate colonial trade and enabled England to collect duties (taxes) in the Colonies. American Colonies Index.
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.