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In page Jiangsu:

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The four mass migrations in the 4th, 8th, 12th and 14th centuries had been influential in shaping the regional culture of Jiangsu. According to dialects and the other factors, the province can be roughly segmented four major cultural subdivisions: Wu (), Jinling (金陵), Huaiyang (淮扬) and Xuhuai (徐淮), from southeast to northwest.[citation needed] The belts of transition blurred the boundaries.[1][2][3]