How man made fire

When man made fire, man wasn't very intelligent. They were cave-man with not a spark of intelligence or clever at all.
The cave-man that made fire was prabably trying to crack rocks and unexpectedly made fire. Then others copied and made more fires if they were lucky enough. They used rocks for a couple of centuries until wood came
Then others copied it again, this time with certain rocks called tinder and flint. The cave-man probably found used these certain rocks when he bashed them together.
Then probably men got desperate and the price probably for tinder boxes got higher and yes some man made fire from really dry wood and kept his family warm all winter
These are my thoughts and supposed stories of how man made fire. This is also my knowledge and imformation on this essay and post