Did you know that the term "computer bug" exists because of an actual, physical moth?
In 1947, computer pioneer Grace Hopper and her team were working on the Harvard Mark II computer when the machine suddenly started failing. After inspecting the hardware, they found a moth trapped inside Relay #70.
Hopper removed the insect with tweezers, taped it into the logbook, and wrote:
"First actual case of bug being found."
While the terms "bug" and "debugging" were already used in engineering to describe mechanical flaws, this incident forever cemented the phrase in computer programming logic. Today, the legendary moth—and the logbook page—are preserved at the Smithsonian National Museum of American History.