Johann Konrad Ammann belongs to the medical record as a figure whose work changed what could be treated.
The record lists Johann Konrad Ammann as Swiss physician.
Johann Konrad Ammann was born at Schaffhausen in 1669. His recorded nationality is Netherlands.
The circulation of the blood and the microscope arrived within a generation of each other, and medicine acquired a mechanism.
Medicine advances against a moving target, and its successes are counted in lives rather than papers.
That the work was done from Netherlands matters: hospitals, training and research funding are unevenly distributed, and they decide which questions can be asked.
Johann Konrad Ammann died in 1724, aged 55. What survives is the change in practice, which is how a medical life is actually measured.
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