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In page Iroquois:

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The founders of League are traditionally held to be Dekanawida the Great Peacemaker, Hiawatha, and Jigonhsasee the Mother of Nations, whose home acted as a sort of United Nations. They brought the Peacemaker's Great Law of Peace to the squabbling Iroquoian nations who were fighting, raiding, and feuding with each other and with other tribes, both Algonkian and Iroquoian. Five nations originally joined in the League, giving rise to the many historic references to "Five Nations of the Iroquois".[b][1] With the addition of the southern Tuscarora in the 18th century, these original five tribes still compose the Haudenosaunee in the early 21st century: the Mohawk, Onondaga, Oneida, Cayuga, and Seneca.[citation needed]