tdihc-2023-05-24-Russian-engineers-begin-drill

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On this day in 1970, Soviet engineers began drilling the deepest man-made hole ever dug.

<p>On this day in 1970, Soviet engineers began drilling the deepest man-made hole ever dug.</p>

From the desk of “Stuff You Missed in History Class,” “This Day in History Class” quickly recounts a tidbit from today’s events in history.

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/c28406a4-63f3-4c56-abe7-b00c0118e528/transcript