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First Description of "Dendritic Spines" (1888) - Spanish neuroscientist Santiago Ramón y Cajal published his first detailed observations of dendritic spines, tiny protrusions on nerve cells now known to be crucial for memory formation.

Foundation of the American Board of Clinical Neuropsychology (1984) - Establishing standardized credentials for clinical neuropsychologists, improving assessment of cognitive, behavioral, and functional difficulties related to brain function.