Final answer:
The quality that characterized the Harappan civilization was a peaceful existence. They prioritized peaceful coexistence over violent wars and had sophisticated urban planning and sanitation systems.
Step-by-step explanation:
The quality that characterized the Harappan civilization was a peaceful existence. The Harappan civilization, also known as the Indus Valley civilization, thrived around 2600-1900 BCE. There is no evidence of violent wars or military fortifications in their cities. Instead, their urban planning, sophisticated drainage and sanitation systems, and lack of defensive structures suggest a society that prioritized peaceful coexistence.
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