The first prize in a cereal box was a book by Kellogg's

The first prize in a cereal box was a book by Kellogg's
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In 1930, he established the W. K. Kellogg Foundation, ultimately donating $66 million to it.[5] His company was one of the first to put nutrition labels on foods. He also offered the first inside-the-box prize for children.[7] Kellogg said, "I will invest my money in people." @Curionic

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