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While not used much any more as a primary source of light, candles are still everywhere, from an aroma in a bathroom to a mood during dinner. That is, until they’re gone.

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Sources:
https://archeologie.culture.fr/lascau...
https://www.britannica.com/place/Lascaux
https://www.mpm.edu/research-collecti...
https://candles.org/candle-science/
https://www.britannica.com/science/co...
https://chem.libretexts.org/Bookshelv...
https://www.epa.gov/indoor-air-qualit...
https://www.sciencealert.com/watch-th...

Image Sources:
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https://commons.wikimedia.org/wiki/Fi...
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https://www.gettyimages.com/search/2/...
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