Not many people know this fact and that it was in the 19th century when Ada Lovelace, a duchess that was not only educated, but also one of the sexiest 1800s nerds wrote the first computer program known to mankind. Here's a photo (sorry for the quality, they didn't have iPhones then) showing how pretty and slim she was for an egghead.
She was lord George Byron's daughter and, like her father, a genius. Even before the first computer has been built, it was Ada Lovelace that wrote the first program for the device that stayed on print. Scientists later used her script to find out if her program works. It was a program prepared for the Charles Babbage's Analytical machine (which was never built), known as the world's first programmable computer on Earth.