When you're in the mood -- a sketch of Emmy Neother?
Emmy Noether (23 March 1882, Erlangen Germany - 14 April 1935, Bryn Mawr, Pennsylvania): A Jewish woman mathematician who shaped the fields of modern abstract algebra and algebraic topology, while also contributing a significant theorem for theoretical physics.
She has been proclaimed as one of the greatest women mathematicians, but I believe that to be an understatement: she was one of the greatest mathematicians period. Her impact on modern mathematics cannot easily be overstated as she did not only prove important results but shaped the way we look at these algebraic structures and topological invariants. Perhaps I am a bit biased because I went to undergrad at Bryn Mawr College where she taught for the last two years of her life, but I also remember during a full day seminar on topology held at the school, we took a trip with the visiting mathematicians to her grave on campus.
I am planning to name my first cat after her, and I highly suggest reading more into her life, which was shaped both by misogyny and antisemitism. These sources provide a nice starting point: Anges Scott Collge, UC San Diego, Britannica. Moreover, while I usually do not recommend wikipedia articles on mathematics for their propensity to be overly technical, her wikipedia article does a good job explaining her contributions to mathematics in a way that is approachable.