Where Does Doppelganger Come From?

Tbh, doppelganger wasn't the most interesting part of this video for me. It really does continue to amaze me how much I just don't know.
Sources:
Etymology.com:
www.etymonline...
www.etymonline...
Word Detective:
www.word-detect...
Twin Stragers.net:
• FIRST EVER Doppelgänge...
twinstrangers....
Global News:
globalnews.ca/...
Have a look some other videos where I talk about words I’ve looked up:
Piss: • Why Do We Take The Piss?
Romani: • Ten Romani Words You A...
Portmanteau: • What Is A Portmanteau?
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Shot on my iPhone SE/ageing iPhone 5S. Edited using iMovie.

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