Burn stuff
1 million years ago?
Nobody knows when our ancestors learned to control fire. The oldest direct evidence comes from Wonderwerk Cave in South Africa, which contains ashes and burned bones from 1 million years ago. But there is evidence hominins were processing food even earlier, and that might have included cooking with fire.
See other: What Makes Humans Human?
Knowledge Guild 
Logically, they acquired fire from embers of lightening strikes, but it’s hard to say when they first learned to ignite one on their own.
Oops – “lightning” —