… First Nation chief Kim Baird. Through acknowledgments, neighbouring First Nations … the “extinguishment” of First Nations’ entitlements to territories. … 400 First Nations in the rest of Canada signed … about the nature of Aboriginal rights, title case …… First Nation chief Kim Baird. Through acknowledgments, neighbouring First Nations … the “extinguishment” of First Nations’ entitlements to territories. … 400 First Nations in the rest of Canada signed … about the nature of Aboriginal rights, title case …