This #AdaLovelaceDay , we're resurfacing some of our favourite pieces from #MissedGenius, which celebrates the life and achievements of scientists, mathematicians and engineers overlooked in their time. Here are some pioneering women in Stem you may not know. [THREAD]

Hilda Geiringer helped to lay the fundamental groundwork much of science and engineering rely upon today. #AdaLovelaceDay https://www.bbc.com/future/article/20191031-hilda-geiringer-mathematician-who-fled-the-nazis?ocid=twfut

Miriam Menkin was the first person to successfully fertilise a human egg in vitro, changing reproductive medicine forever. #AdaLovelaceDay https://www.bbc.com/future/article/20200103-the-female-scientist-who-changed-human-fertility-forever?ocid=twfut

Xia Peisu pushed computing from a geeky obsession into a transformative industry. #AdaLovelaceDay https://www.bbc.com/future/article/20200219-xia-peisu-the-computer-pioneer-who-built-modern-china?ocid=twfut

SJ Baker's revolutionary public health programme saved thousands of lives in New York City. #AdaLovelaceDay https://www.bbc.com/future/article/20200514-sj-baker-the-new-york-woman-who-transformed-public-health?ocid=twfut

Dr Gisella Perl, a Jewish woman interned at Auschwitz and Bergen-Belsen, was charged with looking after the pregnant prisoners, who if found out would face certain death. #AdaLovelaceDay https://www.bbc.com/future/article/20200526-dr-gisella-perl-the-auschwitz-doctor-who-saved-lives?ocid=twfut

Roger Arliner Young was the first black woman in the US to hold a doctorate in zoology, and she constantly had to battle against forces that sought to make her invisible and silent. #AdaLovelaceDay https://www.bbc.com/future/article/20200930-arliner-young-the-black-biologist-failed-by-science?ocid=twfut

Helen Octavia Dickens popularised the use of the Pap smear for black women, helping to save thousands, and empowering even more. #AdaLovelaceDay https://www.bbc.com/future/article/20201012-helen-dickens-the-gynaecologist-who-fought-for-black-women?ocid=twfut