How do we know that the people of the Indus River Valley must have been creative?

The people of the Indus River Valley demonstrated creativity through their advanced urban planning, sophisticated drainage systems, and the construction of impressive structures like the Great Bath in Mohenjo-Daro. They also produced intricate pottery, seals, and jewelry, showcasing their artistic skills and craftsmanship. Additionally, the uniformity and complexity of their weights and measures indicate a high level of innovation in trade and commerce. These achievements reflect a vibrant culture with a strong emphasis on creativity and functionality.