This is the oldest evidence of people starting fires

We didn't start the fire. (Neanderthals did, at least 400,000 years ago.)

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[lunatic_cringe]

While we don’t know when and where the first fire-starter lived, I’d be curious if there’s archaeological evidence for the ability to preserve fire? It seems reasonable that somewhere along the line from chance encounters with wildfires to creating it anytime with a spark, it would have occurred to someone(s) that the hot coals from a campfire could be kept, and perhaps even carried in some way.