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In page Mongol invasion of Kievan Rus':

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However, this was not the end of population migrations. Vladimir, Suzdal, Pereslavl-Zalessky, and other cities of northeastern Rus' were repeatedly targeted by Mongol-Tatar campaigns in the second half of the 13th century. As a result, many of their inhabitants gradually moved either to the vicinity of Moscow and Tver, or to the north in regions such as Yaroslavl, Galich, Veliky, Ustyug, and more.[citation needed]