Bill S-225 proposes to establish National Thanadelthur Day, aimed at honoring the memory and legacy of Thanadelthur, an Indigenous woman who played a crucial role in Canadian history in the early 18th century. This national day seeks to raise public awareness of her historical impact and promote reconciliation with Indigenous peoples.

The main provisions of the bill include designating a specific date for the annual celebration of National Thanadelthur Day. This day would be recognized across Canada, allowing for various educational and commemorative activities to highlight Thanadelthur's significance in Canadian history.

The bill does not directly amend any existing laws but establishes a new national day recognized by the federal government.

Those affected by this bill include Indigenous communities, educators, cultural institutions, and the Canadian public at large, who would be encouraged to participate in celebrations and learn more about Thanadelthur's legacy.