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French psychologist who, with Théodore Simon, invented the first practical intelligence test to help identify children needing educational support

American astronomer and photographer who discovered Jupiter's moon Amalthea, cataloged hundreds of dark nebulae, and for whom Barnard's Star is named

American statesman who served as the 27th President and 10th Chief Justice of the United States, the only person to hold both offices

Swiss psychiatrist known for coining terms such as schizophrenia and autism, and for his influence on modern concepts of mental illness

The 9th Prime Minister of Norway who led the nation to independence from Sweden in 1905

Swedish physician and psychiatrist best known for his autobiographical book, The Story of San Michele

Head of the Catholic Church from 1922 to 1939 and the first sovereign of Vatican City

English mathematician, biometrician, and eugenicist credited with establishing the discipline of mathematical statistics and founding the first university statistics department

American economist and sociologist known for his critique of capitalism and the concept of conspicuous consumption

Austrian Nobel laureate and psychiatrist recognized for malariotherapy in treating dementia paralytica

French statesman who served as President of France and was known as 'the Father of French Indochina'

King of Spain known as El Pacificador who reigned from 1874 until his death in 1885, stabilizing the Spanish monarchy

English neurophysiologist who coined 'synapse' and won the Nobel Prize for his discoveries on neuron functions

English composer and conductor known for his significant contributions to classical music, including the iconic Enigma Variations and Pomp and Circumstance Marches

British doctor and Nobel laureate who discovered the mosquito transmission of malaria, fundamentally changing the fight against the disease

British lieutenant-general, writer, and the visionary founder of the global Scout and Girl Guide Movements

German Marxist theorist, communist activist, and tireless advocate for women's rights

Swiss linguist and philosopher whose foundational ideas shaped 20th-century linguistics and semiotics

Polish-British novelist and master prose stylist who enriched English literature with his unique global perspective and psychological depth