Final Answer:
The most remarkable achievement of the Harappan people was the development of a sophisticated urban civilization marked by advanced urban planning and drainage systems. This civilization, commonly known as the Indus Valley Civilization, adopted these advancements.
Step-by-step explanation:
The Harappan people, who thrived in the Indus Valley around 2600 to 1900 BCE, left an enduring legacy with their advanced urban civilization. One of their most remarkable achievements was the meticulous urban planning evident in their cities.
Cities like Mohenjo-Daro and Harappa featured well-organized streets laid out in a grid pattern, showcasing a level of city planning that was unparalleled in their time.
Equally notable was the Harappan people's mastery of drainage systems. Sophisticated sewage and sanitation systems were integrated into their cities, with houses having access to a well-designed drainage network. This remarkable feat reflects an understanding of public health and urban hygiene that was ahead of its time.
The adoption of these advancements by subsequent civilizations, notably the Aryan civilization, is evident in the continuity of certain urban planning principles. W
hile the Aryan civilization brought its cultural and societal influences to the Indian subcontinent, elements of the Harappan urban planning and drainage systems endured and became integral components of the broader Indian civilization.
The Harappan legacy, therefore, extends beyond its time, influencing the development of civilizations that followed.