Dec. 3, 1979
From Michael’s Zambia cassette tape:

To Canadians it’s corn; to Zambians it’s maize.
Interviewer says, “Willie’s been over here a couple months now, and he’s already a Zambian.”
I know why they call it maize because we had a cob of this the other night, last night in fact, we roasted it and it amazed us. That’s why they call it maize!