Here’s an article from the November 2 1966 Toronto Daily Star that made my jaw drop:
I had no idea that they used to number the indigenous Canadians who lived in the north – how demeaning is that? Did they actually ever address him as “E7-55”?
I’m not sure when the word “Eskimo” stopped being used officially. Wikipedia informs me that the term was originally used by the Algonquin tribes to refer to their northern neighbours, and that the Inuit never referred to themselves this way.