The second Tuesday in October -- this year, Tuesday, October 10 -- is Ada Lovelace Day.. Details of the celebration planned by The Royal Institution of Science are available here at this link. A careful biography of this pioneering female mathematician -- Ada Lovelace (1815-1852) -- is available here.
"Ada Lovelace Day (ALD) is an international celebration of the achievements of women in science, technology, engineering and maths (STEM). It aims to increase the profile of women in STEM and, in doing so, create new role models who will encourage more girls into STEM careers and support women already working in STEM." Quote from https://findingada.com/.
Although her father, poet Lord Byron, had no interest in mathematics, Ada's mother, Lady Byron, was supportive as was astronomer-mathematician Mary Somerville (1780-1872) -- who became a longtime friend and math-encourager. (Lots more details of Lovelace's math-life are available here at the St Andrews Math-History website and her pioneering work with the Analytical Engine is featured here.)
Below is a poem by Twitter poet Brian Bilston (@brian_bilston) that celebrates Ada Lovelace.
The Enchantress of Numbers by Brian Bilston