The Persian empire posed a danger to Greece because of the easy attack distance. Persia even invaded Greece to punish them for aiding the rebellious cities of Anatolia.
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B. Russification has been reversed, where greater numbers of Russians are encouraged to leave these regions.
Answer:
They would hae blackouts to prevent them from being spotted by bombers in the sky. Street lights would be turned out and people would hand blackout curtains to block the light from inside their houses
Explanation:
The correct answer is - the use of civil service exams.
The Tang dynasty came to power after the Sui dynasty ended. This dynasty had a lot of influence by the earlier Han dynasty in its managing of the country. One of the reforms that this dynasty reintroduced for the first time after the Han dynasty went to the history was the use of civil service exams. Through this exams, the dynasty was trying to make its position stronger by having a stronger and wiser civil service.
