Apr 30, 1916 — Claude Shannon Was Born

Claude Shannon was a mathematician and the author of information theory. He showed that information can be measured — that it can be encoded, compressed, transmitted, and restored. People had practical ideas about this before him, but Shannon turned it into mathematics.

He formalized the concept of the “bit” as the smallest unit of information. We still use this unit in almost every digital system today. Shannon also connected electrical circuits with logic, showing how circuits can implement boolean algebra.

Shannon studied at the University of Michigan, earned his master’s degree at MIT, and then joined Bell Labs. It was there that he wrote his most important work, the paper “A Mathematical Theory of Communication.”

During World War II, Shannon worked on cryptography and secure communications. This experience shaped his understanding of noise in information transmission. The Shannon–Hartley theorem remains one of the key tools for reliable data transmission.

In 1956, Shannon became a professor at MIT, where he worked for the rest of his career.

Despite his enormous contribution to computing, Shannon’s name is still not widely known, even among modern developers. That changed a bit when Anthropic released the popular product Claude, which many in the community — and some company employees — believe was named after Claude Shannon.