It was important for a knight to take a vow of loyalty to his lord in order to ensure fidelity to that lord. Often, a knight would receive a fief (plot of land) in exchange for his vow. This was the basis of the feudal system.
Answer:
Dark Age
Explanation:
The Dark Age came after the end of Mycenaean civilization around 1100 BC.
they are all disorders
Equilibrium = when supply is equal to demand.
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