Why you need a oven
I will be telling you why you need a oven, The earliest ovens were in Central Europe witch date back to 29,000 BC. in Ukraine from 20,000 BC they used pits with hot coals covered in ashes. The food was wrapped in leaves and set on top then covered with dirt.
I think you need a oven because it makes cooking or baking so much easier. if you don't have a oven you can't cook your meat and then you meat will be raw and you can't eat it, you need a oven to survive you will not get any fibres witch you need to be healthy.
Those are just the few of the reasons why you need a oven.