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Marie Curie's estimate of 185 (and similar figures from 180 to 200 in different sources) is a retrospective biographical inference, not a measurement. The Stanford-Binet was developed in 1916, twelve years after her first Nobel and well into her established research career.

She is the only person to have won Nobel Prizes in two different sciences: Physics (1903, shared with Pierre Curie and Henri Becquerel) for the discovery of radioactivity, and Chemistry (1911, solo) for the isolation of polonium and radium. Her work created the entire discipline of radiochemistry.

She founded the Curie Institute in Paris and ran a mobile radiology service during World War I, training her daughter Irène (later a Nobel laureate herself) and personally driving X-ray equipment to forward field hospitals. She died in 1934 from aplastic anemia, likely caused by lifetime radiation exposure.