Answer: the successful launch of the first artificial satellite
Explanation: so they can get better that the Soviet Union
A state of political rivalry and tension existing between the Western Allies (favoring democratically elected governments and independent European states) and the Soviet Union (striving for a Soviet-influenced bloc of communist countries). The Cold War started because Europe lost power at the end of World War II. ... This left the Soviet Union and the United States competing for economic and military rule. Both countries believed their policies were the best and ultimately wanted all others to follow.
Answer:
Option: b) Farm laborers acquired more power to negotiate labor terms, forcing rural lords to adjust labor practices to avoid shortages of labor and food.
Explanation:
The Black Death (the plague), was an epidemic that spread throughout Europe and Asia in the mid- the 1300s. The plague lasted for three years, and it killed one-third of all the people in Europe.
The requirement for farmers to work the land was high that it warned the manor lords. Serfs no longer tied to one master, they tend to leave and work for another lord. The manor lords had to make adjustments to make the condition more helpful for the peasants and keep them on their land. Wages were growing higher and the standard of living raised. The peasants became empowered and rebelled when the aristocracy tried to hold the changes carried about by the plague.
Its an important center for salt production. I hope this helps! ^0^