You may want to reword your answer. I did not understand the way you phrased it. Apologies. :l
The discovery of fire is important because you are able to create heat and cook food. Heat increases your chances of survival in cold environments and cooking your meat means that is slower to spoil. Also fire can protect you from land predators. Lastly fire led to the creation on metal weapons and pottery.
One of the main reasons Rome did not expand farther north was because this area was inhabited by several hostile tribes and groups, that became too much of a headache for the Romans.
It’s actually 10 points but here’s the answer,
War