Wiigwaasabak are birchbark scrolls used by the Ojibwe, or more broadly Anishinaabeg, to carry and transmit knowledge.

In Midewiwin, these sacred teaching scrolls are often called mide-wiigwaas. They were used to preserve teachings, songs, ceremonial knowledge, medicine knowledge, migration histories, and other forms of cultural memory through incised or drawn symbols on birchbark. They were not casual notes or decorative objects. They belonged to a living Anishinaabe knowledge system and were meant to be understood within community, ceremony, and oral tradition.

📸: Birch bark scroll image from “The Midewiwin, or 'Grand Medicine Society', of the Ojibwa” in Smithsonian Institution, U.S. Bureau of Ethnology Report, v. 7, pp. 149-299 by Walter James Hoffman. (Washington, DC: Government Printing Office, 1891).