Not new, and not a single discovery
The Harappan civilization was not discovered recently. Excavations at Harappa began in 1921, and work at Mohenjo-Daro followed in 1922, which means the culture has been known for about a century. Scientific work since then has added a great deal, but the “new discovery” lies in the 1920s, and it was a process more than a single moment. Several people dug at several places, and its significance only became clear gradually.
Earlier hints
The mounds at Harappa had been noticed long before. Nineteenth-century visitors described the ruins, and the British archaeologist Alexander Cunningham surveyed the site and published a stamp seal from it in the 1870s. Cunningham did not recognise the seal as belonging to an unknown civilization, and the site’s bricks were plundered for local building and for railway construction in the 1850s. These stray finds were clues that nobody could interpret yet.
Harappa, 1921
The Archaeological Survey of India, under its Director-General John Marshall, sent Daya Ram Sahni to excavate at Harappa in 1921. The dig produced seals carved with animals and signs in an unknown script, together with painted pottery, beads and fine brickwork. Madho Sarup Vats later led much larger seasons there through the late 1920s and 1930s.
Mohenjo-Daro, 1922
At Mohenjo-Daro, in Sindh, Rakhal Das Banerji began excavating in 1922, initially drawn by a Buddhist stupa that stood on the mound. Beneath it lay much older remains, including seals similar to those at Harappa. Marshall realised that two distant sites, hundreds of kilometres apart, shared one culture. In 1924 he announced the find in the Illustrated London News, and readers, including specialists on Mesopotamia, noted resemblances to seals from the Sumerian world. That comparison helped fix an approximate date in the third millennium BCE. Later excavation at Mohenjo-Daro by Ernest Mackay, in the late 1920s and early 1930s, exposed street plans, houses and drains, and Marshall published a large three-volume study in 1931. Work at the site continued in later decades, and the long Mohenjo-Daro excavation history involves Indian, British, American, Pakistani and other international teams.
Partition and new survey work
The partition of India in 1947 left the two best-known cities in Pakistan, and Indian archaeologists began searching for sites on their side of the border. They found many, especially along the dry Ghaggar-Hakra channel and in Gujarat. Among the important excavations were:
- Kalibangan in Rajasthan, noted for a ploughed field of early date and for later Harappan buildings.
- Lothal in Gujarat, linked to bead-making and sea trade.
- Dholavira in Kutch, surveyed in the late 1960s and excavated in much larger campaigns from 1990, with its stone-built reservoirs.
- Rakhigarhi in Haryana, one of the largest known settlements.
In Pakistan, surveys in Cholistan identified hundreds of sites along the old Hakra bed, and sustained work at Harappa from the 1980s used modern methods such as detailed analysis of crafts and diet. Mehrgarh, excavated by a French team from 1974, revealed that farming villages in the region went back to about 7000 BCE, long before the cities.
How the picture has changed
Early reports assumed the cities were a sudden arrival, perhaps influenced from Mesopotamia. Later work showed a long local sequence of villages and towns that gradually developed into the urban phase. The sequence was built up partly through radiocarbon dating and pottery study, and regional surveys have shown the culture was much larger than the first two cities suggested.
The finds also changed views of the end of the cities. One mid-century idea that invaders destroyed Mohenjo-Daro was later challenged when the skeletal evidence was re-examined and shown not to fit a single massacre. The question of what ended urban life remains discussed.
Why the date still matters
Treating the Harappan culture as a “new” discovery risks hiding how much of the story belongs to the early twentieth century. The sites were excavated with the methods of their time, and some of the early recording was imprecise. Many questions, including the language of the script, remain open, and re-study of old material continues alongside new fieldwork.