A river valley civilization or river culture is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Egypt, all grew up in river valleys.
The rightly guided caliphs were successful in spreading Islam because they would fight for the sake of God(Allah) and spread the world of Islam peacefully. They would show practice their religion by being nice and peaceful toward others and helping others.
Also, when Muslims traded they traded fairly, which made the people want to learn more about Islam. They spread it to their families, which later made the population of Islam grow rapidly.
True ;basque corn is an actual thing that I eat soooo yeah
