The correct answer is agriculture. It was made possible for people to live on a single piece of land and not be nomadic anymore in search of food. Agriculture enabled them to settle around river valleys like Nile or Tigris and Euphrates. This is the era when civilizations started rising worldwide.
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The effect of War on women and African Americans:</u></h3>
When the war began, women saw a great opportunity to prove themselves by taking up the roles they had never had the chance to take up. Women started working as nurses, helpers, spies and some of them even wanted to get on the battlefield but women were not allowed to fight. Those who were very determined to fight, disguised themselves as men and joined the military.
For African Americans, the war was a way out of their slavery. Along with the emancipation, the war affected their participation in military services. They joined troops to fight back against slavery. Although in the north, they weren’t accepted to volunteer in the war as they were considered “too weak to fight against the whites"". However, by the end of the war the image for African Americans had changed. The war witnessed a large number of African Americans participating in military services and navy.
No. European countries wanted colonies because they wanted to gain more wealth. Gold and silver from the colonies made the countries richer. Another reason was for the raw materials that they needed for their factories. Getting raw materials from the colonies was much cheaper than buying from other countries. One more reason was the desire for land and power. Having colonies made replenishing supplies easier and in case of war, the colonies could be used as military bases.
The historic moment created the first transcontinental railroad, Enabling travelers to go from coast to coast in a weeks time making it markedly easier to travel west in search of land for settlement. Desiring Quick payment of loans rolls encourage the service to grow and sell cash crops
