Flint and iron pyrites would have been used to light fire. Hot sparks were then struck on to tinder (dried grass, fungus, bark or bulrush).
The smoking tinder would have been made into a flame by blowing on it.
The fire pit was used for warmth, light, cooking and making tools and weapons.
It would also have acted as protection, keeping dangerous animals like wolves away from settlements.
Fire would have been used to smoke or dry-cure food, meaning the meat from a hunt needn't be eaten straight away.