This ancient city was one of the principal centers of the Indus Valley Civilization and is considered one of the most outstanding examples of early urbanization in human history. Dating back nearly five thousand years, Mohenjo-daro belonged to the Harappan civilization and exhibited a remarkably advanced level of urban planning, sanitation, architecture, and social organization.
The city was founded around 2600 BCE and remained inhabited until approximately 1900 BCE. It was discovered in 1922 by Rakhaldas Banerji, and subsequent extensive excavations revealed the true scale of a highly advanced civilization that had previously been unknown. One of the most distinctive features of Mohenjo-daro is its precise and orderly urban planning. The city was designed in a regular grid pattern, with streets generally laid out perpendicular to one another. This urban layout indicates the existence of a cohesive administrative and governmental system.
The city was divided into two main sections: the Citadel, or elevated area, which contained public and religious buildings, and the lower residential area, where ordinary people lived.
The buildings of Mohenjo-daro were primarily constructed from standardized baked bricks that were uniform in size and shape. This standardization suggests the presence of building regulations and centralized control. Houses typically featured central courtyards, multiple rooms, and direct access to the drainage system.
In fact, the most advanced aspect of Mohenjo-daro was its urban sanitation system. Nearly all houses had private bathrooms, and wastewater was carried out of the city through underground channels. From an engineering perspective, this sewage network remained unparalleled in many parts of the world for thousands of years thereafter.
The Great Bath is the most famous structure of Mohenjo-daro and was likely used for religious rituals, purification ceremonies, or communal gatherings. The use of layers of natural bitumen to prevent water leakage demonstrates the builders’ high level of technical knowledge.
Archaeological evidence indicates that the inhabitants of Mohenjo-daro were engaged in agriculture, animal husbandry, handicrafts, and trade. The discovery of seals and commercial objects points to trade relations with distant regions, including Mesopotamia. Notably, there is a lack of clear evidence of sharp social stratification, which may suggest a degree of relative social equality.
The Indus Valley Civilization possessed a form of pictographic script that has not yet been fully deciphered. Nevertheless, artistic remains and symbols reflect a rich and complex culture.
The exact cause of Mohenjo-daro’s decline is not definitively known. However, researchers consider factors such as changes in the course of the Indus River, repeated flooding, climate change, and the depletion of agricultural resources to be among the most likely causes. The theory of foreign invasion is now less widely accepted.
Mohenjo-daro is a remarkable example of early urban development and a testament to humanity’s capacity for social organization and advanced engineering in ancient times. Since 1980, the site has been listed as a UNESCO World Heritage Site and plays a crucial role in comparative studies of ancient civilizations.
Mohenjo-daro is not only one of the most significant cities of the Indus Valley Civilization, but also one of the most outstanding examples of urban civilization in human history. The study of this city demonstrates that many modern concepts of urban planning, sanitation, and social management have very ancient roots.
Mohenjo-daro was contemporaneous with the great civilizations of ancient Egypt and Mesopotamia, yet in many respects, particularly in urban planning and public sanitation, it is considered even more advanced. The city was laid out in a regular grid, with streets intersecting at right angles and built to specific widths, and archaeological findings indicate a clear separation between residential, administrative, and religious areas.
It appears that the people of this civilization used a distinctive pictographic script. However, because this script has not yet been fully deciphered, gaining a precise understanding of their beliefs and system of governance remains difficult.