Chien-Shiung Wu

“In November 1949, Wu experimented with the conclusions of Einstein's EPR thought experiment, which called quantum entanglement "spooky action at a distance".[67] Wu was the first to establish the phenomenon and validity of entanglement using photons through observing angular correlation, as her result confirmed Maurice Pryce and John Clive Ward's calculations on the correlation of the quantum polarizations of two photons propagating in opposite directions.[68] Specifically, the experiment carried out by Wu was the first important confirmation of quantum results relevant to a pair of entangled photons as applicable to the Einstein-Podolsky-Rosen (EPR) paradox.[69][70][71][72]” - Wikipedia

How she has been overlooked…

“The 1957 Nobel Prize for Physics was shared by Chen Ning Yang and Tsung-Dao Lee “for their penetrating investigation of the so-called parity laws which has led to important discoveries regarding the elementary particles”. However, some physicists argue that the Chinese-American physicist Chien-Shiung Wu should have shared the prize for providing the experimental evidence for Lee and Yang’s theoretical prediction of parity violation. Furthermore, some believe that Wu was denied the prize because she was a woman.” - PhysicsWorld