1879: Max von Laue is born

On 9 October 1879, Max von Laue was born in Pfaffendorf, near Koblenz. A theoretical physicist by training, he would never write a line of code or design a learning algorithm. Yet the experimental method he introduced supplied an essential foundation for one of the most visible successes of modern artificial intelligence.

In 1912, working at the University of Munich, von Laue proposed that a crystal lattice might serve as a three-dimensional diffraction grating for the then-mysterious X-rays. The resulting interference patterns both proved the wave nature of X-rays and, more lastingly, encoded the precise arrangement of atoms inside the crystal. The discovery created the field of X-ray crystallography and brought von Laue the 1914 Nobel Prize in Physics.

Over the next half-century the technique was extended from simple minerals to complex organic molecules. It yielded the double helix of DNA, the intricate folds of enzymes, and thousands of protein structures deposited in public databases. Each entry represented months or years of careful measurement—data that later became indispensable training material.

When deep-learning systems such as AlphaFold began predicting protein structures directly from amino-acid sequences, they did so by absorbing the accumulated crystallographic record that von Laue’s insight had made possible. The intellectual path is therefore continuous: a 1912 physics experiment generated the empirical ground truth on which twenty-first-century neural networks now rely for drug design, enzyme engineering and synthetic biology.

Von Laue’s birthday is a quiet reminder that artificial intelligence does not float free of earlier science. Every accurate protein model produced by today’s AI systems still rests, ultimately, on the diffraction spots first explained by a physicist born on this day in 1879.