1861 Autopsy Pinpoints Brain’s Language Center
In an 1861 autopsy of a patient nicknamed 'Tan' who could only say a single word, Dr. Paul Broca identified a fluid-filled lesion in the left frontal lobe, linking speech production to a specific brain region and laying the groundwork for Broca’s area and language localization; this pivotal discovery helped establish that language functions reside in distinct brain areas, a finding that deepened our understanding of aphasia and the brain’s language networks.