As a student, Herman W. Mudgett used corpses to commit insurance fraud. In 1886, he moved to Chicago under the alias H.H. Holmes. In 1888, Holmes started constructing a building with secret passageways and an airtight vault. So, what was it for?
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SYMHC Classics: Nelson Pill Hearings
38:25

Behind the Scenes Minis: Alaska and Contraceptives
28:17

The IUD: A History
44:41