Back in the Paleolithic age, we had to live in caves, which were temporary homes because we had to move to find food all the time.
But in the Neolithic age, we became more civilized, and built homes, permanent ones out of mud bricks, stones, and sticks.
This is important because if we did not invent permanent houses, we would have to travel a lot, making us more tired and making us never have a true home.
Subject: Shelter
Back in the Paleolithic age, we didn't know what agriculture was, because we would go and hunt instead of planting crops, which made having food a tough thing to do.
Subject: Shelter
But in the Neolithic age, we discovered that planting crops and raising animals was a way more reliable source of food rather than hunting for it. We also discovered how to get milk and wool from cows and sheep.
Subject: Shelter
This is important because it paved the way for the entire future of food and raising animals, because if we never had vegetables, we would not have a stable food supply and we would have to walk miles to get food.