This inventor would come a close second to the Inventor of the printing press. And, no, the individual pictured in the one clue is not who you are after.
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That would be the monumental Charles Babbage I'd say.
IMO, a stupendous intellect.
I don't know the first guy, but cabbage and the abacus gave me a light bulb moment.
I see! How does the “sauger” fit in with the answer?
Alexander Graham Bell considered himself a citizen of Scotland, Canada, and the USA. In later life, he spent equal time between Boston, and Baddeck, Nova Scotia.