Photos show how much grocery shopping has changed since the first supermarkets opened a century ago

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A child in a bucket hat looks at grocery store items on a shelf
A child browses at an unknown grocery store in the 1940s.

Syd Greenberg/FPG/Archive Photos/Getty Images

I shopped at Hannaford, Maine's largest grocery chain. It had the best prepared food selection I've ever seen at a supermarket.

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the author outside hannaford supermarkets and the produce aisle
I went inside a Hannaford Supermarket in Scarborough, Maine, and think it should come to more states.

Erin McDowell/Business Insider

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