The exact date is unknown but between 550 bc and 539 bc.
Wages, health, treatment of workers and farmers.
This eventually lead to the Russian Revolution since workers were unsatisfied with how they were treated and how they all lacked the amount of money to purchase basic necessities such as bread.
Hope this helps!
Answer:
b. It was the Communist nations of Eastern Europe.
Explanation:
it separated the communist nations, but it was just a name not a physial thing.
The answer is A. Hope it helps