Ada Lovelace

Augusta Ada King, Countess of Lovelace was an English mathematician and writer, chiefly known for her work on Charles Babbage's proposed mechanical general-purpose computer, the Analytical Engine. She was the first to recognise that the machine had applications beyond pure calculation.

10 December 1815

Born on the same birth day (10 December): Ambrosio Padilla • Andris Bērziņš (Latvian President) • December 10 • Eric Reid • Eudine Barriteau • George MacDonald • Jack Hues • Joseph Škoda • Jules Ladoumègue • Mako (actor) • Nelly Sachs • Nikolay Nekrasov • Rakhat Aliyev • René Toribio • Roman Červenka • Rusty LaRue

Born in the same month (December 1815): Adolph Menzel • George Meade • Thomas Couture