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In page Northern Crusades:
"The most notable of these campaigns were the Livonian and Prussian Crusades. Some of these wars were explicitly regarded as crusades during the Middle Ages. For example, the war against the Estonians and the "other pagans in those parts", authorized by Pope Alexander III's 1171 crusade bull, Non parum animus noster.[4][5] However, others—such as the (possibly mythical) 12th-century First Swedish Crusade and several subsequent incursions, undertaken by Scandinavian Christians against the then-Pagan Finns—were dubbed "crusades" only in the 19th century, by romantic nationalist historians.[citation needed]
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