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Alois Alzheimer

German psychiatrist and neuropathologist (1864–1915)

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Dec 4, 2025
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Number of Alzheimer's 100 years ago

Estimates of how many people had “Alzheimer’s” around 100 years ago are not available as a single, reliable count because the disease was only newly described in the early 20th century and diagnostic ...

Dec 18, 2025
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How did historical death certificates and records classify dementia versus Alzheimer's in the 1920s?

In the 1920s official vital records rarely listed "Alzheimer's disease" as a cause of death; clinicians and statisticians used broader categories such as "senile dementia," "senility," or neurologic/p...