I think what's common between the three is that, these are the turning points where human minds brought about change out of necessity. The ages before those mentioned are periods of great depressions and unfortunate event. So, these fueled the people to change for the better and appreciate science and art more.
The southern slaves had a high rate of natural increase. Masters in the South preferred the black slaves as they served for lifetime with no right of being free.
The slave-holding gentry dominated the eighteenth century Virginia politics as requirements of voting favored the wealthy only.
Answer:
Fought and failed against Alexander's might?
Explanation:
What is your question?
