Mughal Empire
Chemistry

Sake Dean Mahomed had learned much of Mughal chemistry and understood the techniques used to produce various alkali and soaps to produce shampoo. He was also a notable writer who described the Mughal Emperor Shah Alam II and the cities of Allahabad and Delhi in rich detail and also made note of the glories of the Mughal Empire.

In Britain, Sake Dean Mahomed was appointed as shampooing surgeon to both Kings George IV and William IV.
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