Electricity is all around us today and we barely give it a second thought, but it wasn't always this safe.

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Photo Credit:
Photo by Kelly Sikkema on Unsplash
https://unsplash.com/photos/black-usb-cable-plugged-in-white-electric-socket-7alo7OJVNVw?utm_content=creditShareLink&utm_medium=referral&utm_source=unsplash

References: 
https://www.ncbi.nlm.nih.gov/books/NBK448087/
https://en.wikipedia.org/wiki/Residual-current_device#History_and_nomenclature
https://crsreports.congress.gov/product/pdf/R/R47665
https://www.esfi.org/ground-fault-circuit-interrupters-preventing-electrocution-since-1973/
https://electronics.howstuffworks.com/everyday-tech/question110.htm
https://mrelectric.com/blog/the-history-of-electricity-history-of-electricity-timeline

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