In what approximate year was Willem Einthoven's initial electrocardiogram machine first developed?
Answer
1903
The initial development of the electrocardiogram machine, invented by Willem Einthoven to document heart electrical currents, took place around 1903. This date marks the emergence of the foundational medical marvel that could measure minute electrical signals from the heart. Prior to this, accurate documentation of cardiac electrical phenomena was severely limited. The establishment of this date signifies the beginning of systematic, recorded electrocardiography, even though the initial device was extremely cumbersome compared to later iterations.
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