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The timeline can be navigated with the “Scroll Left” and “Scroll Right” buttons or by dragging the pointer to a date on the timeline waveform (located at the bottom of the screen on the desktop version and on the left of the screen on mobile). To filter by a particular topic and see a smaller section of the data, make a selection on the dropdown “Filters” menu or click “Search” to do a keyword search. Hover over the abbreviated filter tags in the blue boxes to see the complete name of the filter, or click a filter to display all the data with this tag. If you want to take a deeper dive into a specific topic by viewing a narrative essay page and a curated timeline, click on “Stories.”

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A diagram with a machinery that has several spools of coil connecting to various batteries.
Diagram of morse key and register.

First telegraph sent, thereby enabling faster medical communication.

1844

MHT
MED
MIL
WAR
Diagram of morse key and register.

By the Civil War, 15,000 miles of telegraph cable will be laid. This serves to enable the transmission of casualty reports and the national ordering of medical supplies to battle sites, thereby making war more "efficient." This is a significant moment in the emergence of "telehealth."