I know manifest destiny was a thing so i think the eagle is spreading its wings further as in expanding beyond the states
One can say that dominating fire was one major breakthrough. Men were already using rock tools in this age and it was an amazing breakthrough in history of man, but learning how to dominate fire was a game changer. It made them live longer, since they had a way to scare the predators, make light at night and to defrost meat.
It is different because if you have a nomadic life you have to find your food and follow it as it moves due to weather changing. As a nomad, you mostly eat meat and not many plants and move around a lot. As a settled village you barely move and farmers plant their own food and can stock up on food. As a settled village you mostly eat plants like grain, wheat, bread, etc.
Answer: A goddess is a female deity. Goddesses have been linked with virtues such as beauty, love, sexuality, motherhood, creativity, and fertility. In some faiths, a sacred female figure holds a central place in religious prayer and worship.