B - Slave revolts.
The revolt of Spartacus, which was also the most famous slave uprising in the history of the Roman Empire, lead to questions about the usefulness and effectiveness of the current governmental system in Rome. This, along with other factors, made them plunge into a crisis which ended through the transition to an empire.
"poll tax" describes a legal means southern whites used to prevent blacks from voting in the post-Reconstruction era but there were other means as well.
Because Rebirth is named??
Answer:
They both created accurate calendars.
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