Here is a strange fact about the modern world: an animation empire worth hundreds of billions of dollars was built, in large part, on a book of German folk tales collected by two scholars who never intended to entertain children at all.
When Jacob and Wilhelm Grimm published "Children's and Household Tales" in 1812, they thought of themselves as preservationists. Germany's old oral stories were dying out, and the brothers set out to record them before they vanished — more like archivists than authors. The first edition even came with scholarly footnotes, and was criticised at the time for being not very suitable for children (which, given what's in some of those tales, was fair).
But something unexpected happened. Families bought the book anyway and read it aloud, and with each new edition the brothers leaned into it — smoothing the tales, softening some of the roughest edges, adding the rhythms and repetitions that work so well when you're reading to a child at bedtime. By Wilhelm's final edition in 1857, the collection had become the thing we now recognise: the fairy tale book, the template for all the others.
Enter the mouse
Eighty years later, in 1937, Walt Disney bet his entire studio on a feature-length animated film — something nobody had successfully done before. The story he chose was the Grimms' "Snow White."
It's hard to overstate what followed. "Snow White and the Seven Dwarfs" became the highest-grossing film of its time and effectively invented the animated feature. Disney went back to the same well again and again — "Cinderella" in 1950, "Sleeping Beauty" in 1959, and, decades later, "Tangled," which is Rapunzel with better hair physics. The company's castle logo is, quite literally, a fairy-tale castle.
Disney's versions were gentler than the originals, sometimes drastically so. (In the Grimms' "Cinderella," the stepsisters take a knife to their own feet to fit the slipper; the film sensibly omits this.) Purists grumble, but the sanitising worked both ways: the films sent generations of readers back to the original tales, keeping the Grimms in print for two hundred years and counting.
Beyond the films
The influence runs wider than one studio. The Grimms' collection laid down the basic grammar of fantasy storytelling — the dark forest, the wicked stepmother, the youngest child who succeeds where the elders fail, the rule of three, the transformation, the reveal. Modern fantasy writers inherited this toolkit whether they wanted it or not; so did every film with a "once upon a time" in its DNA, from earnest adaptations to parodies like "Shrek," which only works because its audience already knows all the rules being broken.
Even the way we study stories owes them a debt. The brothers' methodical collecting helped found folklore studies as an academic discipline, and scholars still use their tales as reference points when tracing how stories travel between cultures and centuries.
Back to the bedside
And yet, for all the box office and the scholarship, the Grimms' real legacy is smaller and closer to home. It's a parent, tonight, somewhere, saying "once upon a time" to a child who has heard the story before and wants it again anyway.
That was the thing the brothers actually preserved — not just the tales, but the habit of telling them. Two hundred years on, "Hansel and Gretel," "Rapunzel," "Snow White" and the rest are still doing their quiet nightly work in bedrooms around the world. Not bad for a couple of librarians with footnotes.