| 1873 | Treaty #3 signed |  |
| 1931 | The Indian Reserve 35E1, also known as the “Assabaska Shoreline Reserve” was relinquished to the Province of Ontario by the federal government without first notifying the First Nations or securing a surrender of the land as required by the Indian Act. | |
| 1977 | The two First Nations requested that the federal and provincial governments negotiate a resolution of the Assabaska shoreline issue. | |
| 1980 | The governments of Canada and Ontario agreed to begin negotiations. | |
| 1982 | Formal discussions among the four parties commenced. | |
| 1993 | The parties asked the Indian Commission of Ontario to begin chairing the discussions. The Commission is a neutral authority established in the 1970s by Canada, Ontario and First Nations Chiefs in Ontario. Its mandate is to help the parties reach agreements on land claims and other key issues. | |
| Mar. 1996 | The idea of the transfer of lands within the Lake of the Woods Provincial Park, subject to public consultation, was placed on the negotiating table for consideration. | |
| Jul. 1996 | The negotiators agreed to recommend the proposed settlement to their respective governments. | |
| 1997 | Ontario, Canada and the First Nations conducted extensive public consultation on the land component of the settlement. | |
| Jul. 7, 1999 | First vote to ratify the final settlement by the Mishkosiimiiniiziibing First Nation. This vote failed, as there were not enough voters. | |
| Oct. 6, 1999 |
Second ratification vote, which passed.
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