Welcome to the Critical Skills Blog, home to over a thousand human-generated articles—never AI—on topics that matter to continuous education. To find articles of interest, use the “Search” tab. Please feel free to comment, and please subscribe. All content on this site is free.
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How Healthcare Changed -01- The Stethoscope and the Birth of Physical Diagnosis
In 1816, René Laënnec, a young doctor in Paris, developed the stethoscope out of embarrassment and necessity when he struggled to examine a patient directly. The design evolved from a simple paper tube to a wooden instrument, enabling doctors to listen to heart and lung sounds more accurately without the… More⇢
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The Brand That . . . . Turned the Prairie
A bankrupt Vermont blacksmith curved a broken saw blade over a log, and the prairie dirt slid off clean. From that one polished plow came the largest farm-machinery company on earth — the brand that was never bought or sold, only the one doing the buying. But the same closed… More⇢
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The City That . . . . Spun Silk
Alexander Hamilton chose a seventy-seven-foot waterfall in New Jersey to prove a young republic could make things — and the city he planned there, Paterson, became Silk City, weaving the overwhelming share of a nation’s silk. Then, in 1913, twenty-four thousand workers walked out and shut three hundred mills, and… More⇢
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Courage and Consequence – The Judge Who Stayed
A wounded Union officer. A judgeship in the worst Klan county in North Carolina. Night riders from the leading families. A friend stabbed to death in the courthouse basement, and letters that warned Tourgée he would be next. He stayed. He put Black men on the jury rolls, took their… More⇢
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The City That . . . . Insured America
When New York’s financial district burned in 1835 and insurers up and down the coast folded and paid nothing, one small Connecticut river city pledged its own fortunes and paid every claim in full. That was the day Hartford became the Insurance Capital of the World — a city that… More⇢
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The Brand That . . . . Put a Blue Box in Every American Dream
It opened in the ruin of the Panic of 1837 and took in four dollars and ninety-eight cents in its first three days — no diamond in the place. So how did Tiffany & Co. teach a whole country that the best moment of a life could fit inside a… More⇢
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Factions in Action – – Have We Been Here Before?
A senior official calls the coming election “game over.” A senator calls it the gravest threat since the Civil War. Strip the labels and the two fears are identical — and two centuries old. This essay asks what actually changed. The answer isn’t the politics. It’s the speed. More⇢
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The City That . . . . Made the World Sparkle
In 1794 a Providence goldsmith figured out how to make a little gold cover a lot of copper — and with that one trick a New England port became the Jewelry Capital of the World, shipping a million pounds of costume jewelry a week to every five-and-dime in America. It… More⇢
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The Founders Feared a Rich President. Here’s the Sentence They Wrote to Stop One.
Did the Founders intend to let a President grow rich in office — to take a foreign king’s gifts, or draw a second income from the government he led? They answered that in 1787. The answer was no. On a hot Thursday that August, a South Carolina delegate rose and… More⇢
Meet Your Host – Charles Cranston Jett
Charles Cranston Jett is an author, civic educator, and Professional Certified Coach based in Chicago. A graduate of the U.S. Naval Academy (Class of 1964) and Harvard Business School, he served during the Cold War aboard the nuclear submarine USS Ray (SSN 653), where his tactical innovations helped inspire Tom Clancy’s Jack Ryan character. He developed the Field Studies methodology to teach “Critical Skills” and was endorsed by the Department of Labor in 1994. He is the author of six books, including Super Nuke!, hosts three podcasts, and writes across his Critical Skills Blog and Civic Sage platforms on history, leadership, and the health of the American republic. He and his wife, Dr. Nancy Church, co-host the Chicago Salons at Water Tower Residences.
