Ada Lovelace Dies: The First Programmer Passes

Augusta Ada King, Countess of Lovelace, died of uterine cancer on November 27, 1852, at the age of 36, the same age at which her father, the poet Lord Byron, had died. She left behind a small body of published work, one piece of which would earn her recognition, more than a century later, as the first computer programmer in history. Her notes on Charles Babbage's Analytical Engine contained what is now considered the first algorithm designed for machine execution. Ada Byron was raised by her mother, who separated from Lord Byron a month after Ada's birth and was determined that her daughter pursue mathematics rather than poetry. The strategy worked, though Ada's mathematical imagination retained a distinctly poetic quality. She was tutored by some of Britain's finest mathematicians and became fascinated by Babbage's mechanical computing engines after meeting him at a London party in 1833, when she was seventeen. Babbage's Analytical Engine existed only as a design, never built in his lifetime. In 1843, Ada translated an Italian mathematician's description of the engine and appended her own notes, three times longer than the original article. Note G contained a detailed method for calculating Bernoulli numbers, complete with step-by-step instructions and a diagram resembling what we now call a computer program. More remarkably, she speculated that the engine could manipulate symbols beyond numbers, anticipating the general-purpose computer by a century. Her contributions were largely forgotten until Alan Turing referenced the "Lady Lovelace's Objection" in his 1950 paper on artificial intelligence. The U.S. Department of Defense named its programming language Ada in her honor in 1979. Whether she or Babbage deserves primary credit for the algorithm remains debated, but her vision of computing as something beyond calculation was entirely her own.