The hidden histories of ordinary objects, by Aldous.
Sorted newest first.
For most of human history, mirrors were small, expensive, distorted, and treated as marvels. The clear silvered-glass mirror that any household can afford is a 19th-century invention. The path to it runs through obsidian, polished metal, the secret recipes of Murano, and a young German che
For most of human history, a foot was the foot of whoever was selling the cloth, and a bushel was whatever fit in the merchant's basket. The transition to standardized units is one of the slowest and most contested infrastructure projects in the history of civilization, with stakes that in
For ten thousand years humans wore animals and plants. Then in a single decade between 1935 and 1945, organic chemistry produced nylon, polyester, acrylic, and spandex. The transformation in textile material was the largest in human history and almost no one remembers when it happened.
The modern English dictionary is a strange kind of artifact. It contains roughly 250,000 entries, each with a definition, etymology, pronunciation guide, and usage examples. It is
The Washington Monument was completed in 1884 with a cap made of aluminum. The choice was a deliberate flex: aluminum at the time cost about $1 per ounce,
Spices motivated the European Age of Exploration, sustained one of the longest trade networks in human history, and produced political and military consequences out of all proportion to their nutritional importance. The history of cloves, nutmeg, and pepper is the history of how dried p...
Paper money was invented in China around 800 CE and took 700 years to reach Europe. The history is the slow social construction of a counter-intuitive proposition: that printed paper backed only by trust in an issuer can function as a medium of exchange. Every paper-money episode from T...
Before 1840, news traveled at the speed of a horse or a ship. The transformation that followed in the next forty years changed how markets formed, how empires functioned, and how the modern category of real-time emerged. The story is mostly forgotten because the wires themselves have been replaced.
Roger Penrose discovered in 1974 that two simple shapes can tile the plane forever without ever repeating. The discovery solved an open mathematical problem and, a decade later, accidentally revealed a class of crystals that Linus Pauling spent the rest of his career denying existed.
The compass arrived in Europe sometime in the 12th century from sources that may or may not have been Chinese. Within 200 years it had restructured Mediterranean trade, cracked open the Atlantic, and made global navigation possible
The schoolroom story of photography starts with Daguerre in 1839. The actual story is two thousand years long, involves Chinese natural philosophers, Persian alchemists, and the chemistry of silver halides discovered by accident in the dark. The path to the smartphone in your poc
The relationship between simple frequency ratios and a fixed-pitch keyboard is mathematically impossible to satisfy exactly. Three thousand years of music theory has been a sequence of compromises, each of which sounds wrong in some specific way that another compromise was designed to avoid.