Hi bunny,

1. Boats and rafts enabled people to reach distant lands, travel up rivers, fish rich offshore regions, and travel far, bringing trade items and gaining wealth.

2. Fire allowed people to cook foods that would not have been edible in a raw state. The warmth of fire improved the comfort of life and helped infants and sick or injured people rest and recuperate. Without fire it would have been impossible for people to settle in areas of cold climate.

3. Writing allowed people to tell stories, send messages, keep records, ask questions and teach new skills, without ever speaking or being present.

4. Flint-knapping gave people various kinds of tools; knives, burins, scrapers, arrow and spear heads.

5. Taming of livestock and dogs improved life tremendously. The dogs protected campsites from predators and helped hunters catch prey. Cattle, goats and sheep made nourishing children easier, with dairy products and meat.