Abstract

Mohenjo-daro is an archeological site in the province of Sindh, Pakistan. Built around 2500 BC, it was one of the largest settlements of the ancientIndus Valley Civilization, and one of the world’s earliest major urbansettlements, contemporaneous with the civilizations of ancient Egypt, Mesopotamia, Minoa (Crete), and Norte Chico. Mohenjo-daro was abandoned in the 19th century BC as the Indus Valley Civilization declined, and the site was not rediscovered until the 1920s.

It is sited on a Pleistocene ridge in the middle of the flood plain of the Indus River Valley, around 28 kilometres from the town of Larkana. The ridge was prominent during the time of the Indus Valley Civilization, allowing the city to stand above the surrounding flood plain, but subsequent flooding has since buried most of the ridge in silt deposits. The Indus still flows east of the site, but the Ghaggar-Hakra riverbed on the western side is now dry.

At its height, the Indus Civilization spanned much of what is now Pakistan and North India, extending westwards to the Iranian border, south to Gujarat in India and northwards to an outpost in Bactria, with major urban centers at Harappa, Mohenjo-daro,  Lothal,  Kalibangan,  Dholavira and Rakhigarhi. Mohenjo-daro was the most advanced city of its time, with remarkably sophisticated civil engineering and urban planning. When the Indus civilization went into sudden decline around 1900 BC, Mohenjo-daro was abandoned.

INTRODUCTION:

Mohenjo-daro is an archeological site in the province of Sindh, Pakistan. Built around 2500 BC, it was one of the largest settlements of the ancient Indus Valley Civilization, and one of the world’s earliest major urban settlements, contemporaneous with the civilizations of ancient Egypt, Mesopotamia, Minoa (Crete), and Norte Chico. Mohenjo-daro was abandoned in the 19th century BC as the Indus Valley Civilization declined, and the site was not rediscovered until the 1920s. Significant excavation has since been conducted at the site of the city, which was designated a UNESCO World Heritage Site in 1980. The site is currently threatened by erosion and improper restoration.

Mohenjo-daro, the modern name for the site, has been variously interpreted as “Mound of the Dead Men” in Sindhi, and as “Mound of Mohan” (where Mohan is Krishna). The city’s original name is unknown. Based on his analysis of a Mohenjo-daro seal, Iravatham Mahadevan speculates that the city’s ancient name could have been Cock-fightingmay have had ritual and religious significance for the city, with domesticated chickens bred there for sacred purposes, rather than as a food source. Mohenjo-daro may furthermore have been a point of diffusion for the eventual worldwide domestication of chickens.

Location

Mohenjo-daro is located west of the Indus River in Larkana District, Sindh, Pakistan, in a central position between the Indus River and the Ghaggar-Hakra River. It is sited on a Pleistocene ridge in the middle of the flood plain of the Indus River Valley, around 28 kilometres from the town of Larkana. The ridge was prominent during the time of the Indus Valley Civilization, allowing the city to stand above the surrounding flood plain, but subsequent flooding has since buried most of the ridge in silt deposits. The Indus still flows east of the site, but the Ghaggar-Hakra riverbed on the western side is now dry.

Historical

Mohenjo-daro was built in the 26th century BC. It was one of the largest cities of the ancient Indus Valley Civilization, also known as the HarappanCivilization, which developed around 3000 BC from the prehistoric Indus culture. At its height, the Indus Civilization spanned much of what is now Pakistan and North India, extending westwards to the Iranian border, south to Gujarat in India and northwards to an outpost in Bactria, with major urban centers at Harappa, Mohenjo-daro, Lothal, Kalibangan, Dholavira and Rakhigarhi. Mohenjo-daro was the most advanced city of its time, with remarkably sophisticated civil engineering and urban planning. When the Indus civilization went into sudden decline around 1900 BC, Mohenjo-daro was abandoned.

Architecture and urban infrastructure

Mohenjo-daro has a planned layout based on a street grid of rectilinear buildings. Most were built of fired and mortared brick; some incorporated sun-dried mud-brick and wooden superstructures. The covered area of Mohenjo-daro is estimated at 300 hectares. The Oxford Handbook of Cities in World History offers a “weak” estimate of a peak population of around 40,000.

The sheer size of the city, and its provision of public buildings and facilities, suggests a high level of social organization. The city is divided into two parts, the so-called Citadel and the Lower City. The Citadel – a mud-brick mound around 12 metres (39 ft) high – is known to have supported public baths, a large residential structure designed to house about 5,000 citizens, and two large assembly halls. The city had a central marketplace, with a large central well. Individual households or groups of households obtained their water from smaller wells. Waste water was channeled to covered drains that lined the major streets. Some houses, presumably those of more prestigious inhabitants, include rooms that appear to have been set aside for bathing, and one building had an underground furnace (known as a hypocaust), possibly for heated bathing. Most houses had inner courtyards, with doors that opened onto side-lanes. Some buildings had two stories.

In 1950, Sir Mortimer Wheeler identified one large building in Mohenjo-daro as a “Great Granary”. Certain wall-divisions in its massive wooden superstructure appeared to be grain storage-bays, complete with air-ducts to dry the grain. According to Wheeler, carts would have brought grain from the countryside and unloaded them directly into the bays. However, Jonathan Mark Kenoyer noted the complete lack of evidence for grain at the “granary”, which, he argued, might therefore be better termed a “Great Hall” of uncertain function. Close to the “Great Granary” is a large and elaborate public bath, sometimes called the Great Bath. From a colonnaded courtyard, steps lead down to the brick-built pool, which was waterproofed by a lining of bitumen. The pool measures 12 metres (39 ft) long, 7 metres (23 ft) wide and 2.4 metres (7.9 ft) deep. It may have been used for religious purification. Other large buildings include a “Pillared Hall”, thought to be an assembly hall of some kind, and the so-called “College Hall”, a complex of buildings comprising 78 rooms, thought to have been a priestly residence.

Mohenjo-daro had no series of city walls, but was fortified with guard towers to the west of the main settlement, and defensive fortifications to the south. Considering these fortifications and the structure of other major Indus valley cities like Harappa, it is postulated that Mohenjo-daro was an administrative center. Both Harappa and Mohenjo-daro share relatively the same architectural layout, and were generally not heavily fortified like other Indus Valley sites. It is obvious from the identical city layouts of all Indus sites that there was some kind of political or administrative centrality, but the extent and functioning of an administrative center remains unclear. Mohenjo-daro was successively destroyed and rebuilt at least seven times. Each time, the new cities were built directly on top of the old ones. Flooding by the Indus is thought to have been the cause of destruction.

A well-planned street grid and an elaborate drainage system hint that the occupants of the ancient Indus civilization city of Mohenjo Daro were skilled urban planners with a reverence for the control of water. But just who occupied the ancient city in modern-day Pakistan during the third millennium B.C. remains a puzzle.

The city lacks ostentatious palaces, temples, or monuments. There’s no obvious central seat of government or evidence of a king or queen. Modesty, order, and cleanliness were apparently preferred. Pottery and tools of copper and stone were standardized. Seals and weights suggest a system of tightly controlled trade.

The city’s wealth and stature is evident in artifacts such as ivory, lapis, carnelian, and gold beads, as well as the baked-brick city structures themselves.

A watertight pool called the Great Bath, perched on top of a mound of dirt and held in place with walls of baked brick, is the closest structure Mohenjo Daro has to a temple. Possehl, a National Geographic grantee, says it suggests an ideology based on cleanliness

Wells were found throughout the city, and nearly every house contained a bathing area and drainage system.

Rediscovery and excavation

The ruins of the city remained undocumented for around 3,700 years until R. D. Banerji, an officer of the Archaeological Survey of India, visited the site in 1919–20, identifying the Buddhist stupa (150–500 CE) known to be there and finding a flint scraper which convinced him of the site’s antiquity. This led to large-scale excavations of Mohenjo-daro led by Kashinath Narayan Dikshit in 1924–25, and John Marshall in 1925–26. In the 1930s, major excavations were conducted at the site under the leadership of Marshall, D. K. Dikshitar and Ernest Mackay. Further excavations were carried out in 1945 by Ahmad Hasan Dani and Mortimer Wheeler. The last major series of excavations were conducted in 1964 and 1965 by Dr. George F. Dales. After 1965 excavations were banned due to weathering damage to the exposed structures, and the only projects allowed at the site since have been salvage excavations, surface surveys, and conservation projects. However, in the 1980s, German and Italian survey groups led by Dr. Michael Jansen and Dr. Maurizio Tosi used less invasive archeological techniques, such as architectural documentation, surface surveys, and localized probing, to gather further information about Mohenjo-daro. A dry core drilling conducted in 2015 by Pakistan’s National Fund for Mohenjo-daro revealed that the site is larger than the unearthed area.

Archaeologists first visited Mohenjo Daro in 1911. Several excavations occurred in the 1920s through 1931. Small probes took place in the 1930s, and subsequent digs occurred in 1950 and 1964.

The ancient city sits on elevated ground in the modern-day Larkana district of Sindh province in Pakistan.

During its heyday from about 2500 to 1900 B.C. the city was among the most important to the Indus civilization. It spread out over about 250 acres (100 hectares) on a series of mounds, and the Great Bath and an associated large building occupied the tallest mound.

According to University of Wisconsin, Madison, archaeologist Jonathan Mark Kenoyer, also a National Geographic grantee, the mounds grew organically over the centuries as people kept building platforms and walls for their houses.

With no evidence of kings or queens, Mohenjo Daro was likely governed as a city-state, perhaps by elected officials or elites from each of the mounds.