Vikings raids caused people to turn to local lords or nobles for protection instead of kings.
Moreover, The Vikings helped popularize feudalism in the Middle Ages in many ways. Their raids caused people to turn to local lords or nobles for protection instead of kings and this caused feudalism to grow rapidly considering their raids were frequent and fast and each raid caused feudalism to grow more and more . Feudalism in its various forms usually arose as a result of the decentralization of empire notably in the Carolingian Empire in the 9th century AD, which lacked the bureaucratic infrastructure necessary to support cavalry without allocating land to these cavalry units.
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