July 26, 2025

Daniel Greysolon, Sieur du Luht, was an influential French explorer whose name anglicizes to Sir Duluth. He signed his letters “Dulhut,” participating in his own casual anglicization despite the constant conflict his nation had with England. I call him Duluth, synonymous with our present-day, American city.

1639: Duluth is born in Saint-Germain-Laval, France.

1650: Duluth is 11 when the first modern philosopher René Descartes dies age 53 in Stockholm, Sweden. A letter from the young Duluth lies on the bedside table, offering a common-sense critique of Descartes’ notion that animals are automatons who may be vivisected. “I guess you’ve never owned a pet,” the boy’s careful handwriting says. The letter continues, “‘I think therefore I am’ is meaningless since grounds for doubting existence do not exist. You torture language like you torture dogs.” It has been suggested that Descartes was so distressed to have his life’s work effortlessly eviscerated by a child that he quickly succumbed to pneumonia and died.

This postcard, published by the Zenith Interstate News Company, was mailed on July 26, 1955 — 70 years ago today. It shows the Hotel Duluth, 231 E. Superior St., which has been known as Greysolon Plaza since 1980. …

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