A section from the journey

The Ports of the Coromandel

A century after the sailor's handbook, a Greek scholar named Ptolemy in Egypt set out to map the whole known world. He listed the Tamil coast in careful detail — the lands of the three crowned kings, the river-mouths, and the ports, including Muziris and the pearl-port. A nineteenth-century scholar named McCrindle put his work into English. Now we had a map to set beside the poems.

We have heard a sailor and we have heard a Roman writer. Now meet a third kind of witness, and a different kind of mind. Not a trader counting cargo, but a scholar trying to chart the whole world from his desk.

His name was . He was a Greek who lived and worked in the great city of Alexandria, in Egypt, around the year 150 of the Common Era. He set himself an enormous task: to write down where every place in the known world lay, so that one could draw it all as a map. And the Tamil coast was part of his known world.

Think of how far the news had to travel for him to do this. Ptolemy never came to India. He worked from the reports of sailors and merchants who had. That the Tamil coast could be charted in faraway Egypt tells us how much was known of it — how many ships had gone and come, how much had been told and written down.

And what he charted fits what we already know. He marks the lands of the three crowned kings — the Chera, the Pandya, and the Chola, each under his own Greek-shaped name. He marks the mouths of the rivers and the ports along both the western and the eastern coasts. Muziris is there. The pearl-port at Korkai is there. A port at the mouth of the great Kaveri is there. The map and the poems are drawing the same land.

The long eastern shore of the Tamil land has a name you may meet again: the coast. Up and down it ran the harbours that traded with the world. Ptolemy's careful list lets us see them strung along the sea, like beads on a thread, each one a doorway between the south and the wider world.

How do we read Ptolemy today? His work came down to us in Greek, and a scholar named J. W. McCrindle, in the eighteen-hundreds, gathered all the parts of it that speak of India and put them into English. Through his patient work, Ptolemy's map of the Tamil coast can be read by anyone. So now we hold three witnesses together: the Tamil poets within, the sailor's handbook from the sea, and the scholar's map from Egypt.

One honest word, as in every part of this chapter. The year I gave for Ptolemy, around 150, is a scholarly estimate and is debated. And matching his old place-names to real towns is careful, sometimes uncertain work. But that a foreign scholar could chart this coast at all — its kings, its rivers, its ports — that tells us plainly how known and how connected the Tamil south had become.

A scholar who never saw the Tamil coast still mapped it, because so many travellers had carried its shape back to him. Think of a place you know well only through others' words. How much can we truly know of something we have never seen for ourselves?