The Indus River Valley Civilization dates back to around the 2500 BCE with Harappa and Mohenjo-Daro as its two largest cities. Although not much is still known to archaeologists, we are able to make inferences and conclusions about their time through the evidence we have. Mohenjo-Daro (also known as the "Mound of the Dead") is located in present day Pakistan. From about 2600 BCE to 1900 BCE, the 35,000 civilians were able to thrive on the 250 acres of land. Harappa has been considered to be the urban center that dominated the upper Indus region. Since its discovery in the early 1900's, archaeologists have been able to learn more and more about "one of the most important early cities of South Asia."
Nowadays when we think of money, we think of the paper bills we use today, but that was not the case during the city of Mohenjo-Daro's time. Stone weights were used as their form of money. As an agricultural society, they were able to grow various grains like barley and wheat. Having the stone weights made buying and selling a lot easier and showed that trade was controlled tightly. Some artifacts found (ex. gold beads, ivory) suggest the wealth of Mohenjo-Daro.