Feudalism declined during the Crusades because B. many knights lost their lives and fortunes in battle.
<h3>What is Feudalism?</h3>
This refers to the system of land ownership where a lord gives out land to his faithful vassal, as reward for work.
Hence, we can see that this system declined during the Crusades primarily because there was a great loss of life by the knights in the bitter battle that ensued.
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<span>Iran is the Middle Eastern country that one would expect to have an economy that is command-based rather than market based. When a country has a command-based economy, it means that the production of goods, the prices, the income and the investments of the country are all determined by the government. Saudi Arabia, Turkey, and Nigeria have economies that are market-based.</span>
I believe the answer is: the Columbian Exchange
Columbian exchange refers to the exchange of knowledge, labour culture, plants , and animals that heppened between countries in american continent during the 1500s. When the exchange happens, different races crossbreed with one another which resulted in the birth of new races.
<span>In a self-fulfilling prophecy, the assertion was originally
"false", and becomes
"true".</span>
A self-fulfilling prophecy is a forecast that specifically or in a roundabout way makes
it turn out to be valid, by the very terms of the prediction itself, because of
positive input amongst conviction and conduct. Robert K. Merton made this term
in 1948 to portray a bogus meaning of the circumstance bringing out another
conduct, which influences the initially false origination to be true.