Final answer:
The creation of an elite class of armored knights was influenced by the development of stirrups.
Step-by-step explanation:
The technological development that led to the creation of an elite class of armored knights was the development of stirrups. The invention of stirrups in early medieval times allowed knights to stay securely mounted on their horses during battles, giving them stability and the ability to use heavy weapons effectively, such as lances and swords. With the advantage of the stirrups, knights became the dominant force on the battlefield and formed the backbone of European feudal societies.
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