The Indus Cities — Sleep Podcast

Four and a half thousand years ago, on the alluvial plain between two great rivers, a civilization built the most disciplined cities of the Bronze Age — and then kept its silence.

The people of the Indus fired every brick to the same proportion. They laid their streets at right angles. They gave nearly every house a private bathing room and carried its waste out in brick-lined drains to a soak pit. They kept a system of weights, accurate to a few percent, across a million and a quarter of square kilometers, for seven centuries. They sent their red beads into the royal tombs of Mesopotamia, and they wrote — short, sealed lines, on the bundles and the tags, for the trade.

But they left no readable sentence. No king’s name. No god’s name. No decree. In this bedtime hour we walk their grid, weigh their beads, stand at the edge of their sea, follow the trade the long way round, and come, at the end, back to the one question the whole record is built to leave open: who were they, and why have they kept their silence?

A slow, unhurried reading at the edge of sleep. The wind keeps moving.

Source Notes and Endnotes

1. J. Marshall, Mohenjo-Daro and the Indus Civilization (1931).
2. J. M. Kenoyer, Ancient Cities of the Indus Valley Civilization (OUP/AIPS, 1998).
3. R. S. Bisht, Excavations at Dholavira 1989–2005 (2015).
4. A. S. Hemmy, “Systems of Weights at Mohenjo-Daro,” in Marshall 1931.
5. L. Giosan et al., “Fluvial landscapes of the Harappan civilization,” PNAS 109 (2012).
6. L. Giosan et al., “Neoglacial climate anomalies and the Harappan metamorphosis,” Climate of the Past 14 (2018).
7. V. S. Shinde, V. M. Narasimhan et al., “An Ancient Harappan Genome Lacks Ancestry from Steppe Pastoralists or Iranian Farmers,” Cell 178 (2019).
8. V. M. Narasimhan et al., “The formation of human populations in South and Central Asia,” Science (2019).
9. M. Wheeler, The Indus Civilization (suppl. vol., Cambridge History of India), 1943/1953.
10. R. P. N. Rao et al., “Entropic evidence for linguistic structure in the Indus script,” Science 324 (2009).
11. A. Parpola, Deciphering the Indus Script (1994).
12. S. Farmer, R. Sproat & M. Witzel (2004), on the non-linguistic reading of the signs.
13. UNESCO World Heritage: “Archaeological Ruins at Moenjodaro” (1980); “Dholavira” (2021).
14. Wikipedia: “Indus Valley Civilisation,” “Meluhha,” “Indus script,” “Dholavira” (accessed 2026-09-26).