A section from the journey
The Grid and the Street
Most old cities grew up tangled, lane upon crooked lane. The cities of the Indus were different. Their main streets ran straight, north to south and east to west, crossing at neat right angles. Many had a raised western mound, which scholars call the citadel, beside a larger lower town. Someone had thought the whole city through before a single brick was laid.
Picture an old city in your mind. Most likely you see narrow lanes that twist and turn, houses crowded close, a town that grew up slowly with no single plan. For most of history, that is how cities were born. They simply spread.
Now come stand at the edge of a city by the , more than four thousand years ago. Here something is different. Look down the main street. It runs straight. Look at the cross-street. It meets the first one at a clean right angle, like the corner of a square.
The big streets were laid out in two directions, north to south and east to west. Where they crossed, they made neat blocks, the way a window is divided into panes. This is what we call a grid. It does not happen by chance. A grid means someone planned the city before it was built.
Think about what that means. Before the first house went up, someone had pictured the whole city in their mind. Where the streets would run. Where the blocks would sit. That is a remarkable act of order, this long ago.
Most of the great cities had two parts. To the west stood a raised mound, built up higher than the rest. Archaeologists call it the . It was not a fort in the way we think of forts. It held large buildings meant for the whole city to use.
Spread out to the east, lower and wider, lay the rest of the city. We call it the lower town. This is where most people lived and worked, in homes and workshops along those straight streets. A high western mound, a broad town below: this same shape repeats at city after city, hundreds of miles apart.
And here a careful teacher must stop and say what we do not know. We have not found the name of a single king of these cities. We have not found the name of the planner who drew the streets. The people are silent to us. Yet the streets themselves speak. They tell us, beyond doubt, that these were people who loved order and built by a plan.
Hold on to that one idea as we walk deeper into these cities: order. Straight streets, shared shapes, things done the same way across a vast land. It is the signature of this whole world, and we will meet it again and again.
When you walk through a place that is neat and well laid out, you can feel the care of the person who planned it, even if you never learn their name. Stand on one of these straight streets in your mind. What do you think the people who planned it wanted their city to feel like?
Picture most ancient cities, and you picture a muddle. Lanes wander. Houses lean. The town simply grew, year by year, with no one plan. The great cities of the Indus give us a surprise. Their main streets were laid out straight, running north to south and east to west, and they crossed each other at clean right angles, cutting the city into blocks. Many cities had two parts: a raised mound to the west, which archaeologists call the citadel, and a wider lower town spread to the east. The citadel held large public buildings; the lower town held homes and workshops. We do not know who drew these plans, or what they called themselves. We have no king's name, no architect's name. But the straightness of the streets tells us something plain and sure: this was a city thought through before it was built, by people who valued order. That love of order is the thread we will follow all through this chapter.
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