Answer:
The earliest Indian civilization developed on the Indus River. Later, the Aryans arrived in northern India. A social system that determined how people lived evolved. Early India's two main religions were Hinduism and Buddhism.
The first farmers liked living near the river because it kept the land green and fertile for growing crops. These farmers lived together in villages which grew over time into large ancient cities, like Harappa and Mohenjo-Daro.
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