Journey
Al-Bīrūnī — the scholar in Maḥmūd's train (c. 1017–1030)
Brought from Khwarezm to Ghazni after Maḥmūd annexed it, and kept as a court scholar rather than a guest. He learned Sanskrit, read the Puranas and the Siddhantas, translated in both directions, and wrote the fairest account of Indian learning any outsider produced before the nineteenth century — while attached to the army sacking the places he wanted to study.
Stops (8)
- Ghazni · home · Ghazni
Mahmud's capital, from which seventeen campaigns went into India and where al-Biruni worked for most of his life. He was taken there as a prize after the conquest of Khwarezm, not as a volunteer, and he complains in the Tarikh al-Hind about the conditions of the work and about what the campaigns had done to the scholarship he was trying to reach.
- Bahāuddin Zakariya & Rukn-e-Ālam · Multan and the Indus road
Multan and the Indus route were the corridor of the Ghaznavid campaigns that carried him into India in the first place. Multan had its own great sun temple, which Mahmud's forces destroyed, and he mentions it without comment — the silence being the most eloquent thing in the passage. The silence about the sun temple's destruction is the most eloquent thing in the passage.
- Nandana, the Salt Range · Nandana, c. 1018
A hill fort in the Salt Range where he measured the angle of dip to the horizon from a summit of known height and computed the radius of the earth to within about half a percent of the modern figure. He used the method because he could not get to the Iraqi plains where his predecessors had used a longer baseline.
- Takshashilā / Taxila · the Punjab
He travelled in the Punjab and the north-west and worked with pandits there, which is where the Sanskrit came from. He also translated Patanjali and the Samkhya into Arabic and Euclid and Ptolemy into Sanskrit, in both directions at once — the only person in this repository who did that.
- Mathurā · Mathura, described
Mathura, whose sack he reports with visible discomfort — he thought the destruction had made Hindus inveterate against all Muslims and had ruined the scholarship he was trying to reach. He was in the army that did it, which is what makes the passage unusual: a conqueror's scholar saying the conquest destroyed what he came for.
- Kannauj · Kanauj, a reference point
Kanauj, which he uses as one of the fixed reference points of his Indian geography and longitude tables. Those tables fix Indian cities against Baghdad and Ghazni and are the first attempt to put the subcontinent on a coordinate grid; Kanauj was still nominally the imperial city, which is why he chose it.
- Somnāth / Prabhāsa · Somnath, described
Somnath, sacked in 1025–26; he describes the shrine, the tides, and why the sea-facing site mattered — explaining its wealth by its position on the pilgrim route from Sindh and by the tide, which he had read about rather than seen. It is the raid he did not have to witness in order to understand.
- Ujjain / Avantikā · Ujjain, the meridian
Ujjain, which Indian astronomers used as their prime meridian, and which al-Biruni takes as the reference for converting between Indian and Islamic longitude systems. He treats the siddhantic tradition as a rival scientific literature to be read and argued with, not as superstition, and that is what makes the book what it is.