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[MUSIC PLAYING] Medieval manuscript artists typically made paint from colored materials ground into powder and mixed with a liquid binder. Many of the most brilliant pigments didnt come straight from nature but were made through alchemy, an experimental practice that predates modern chemistry. Beyond trying to change base metals into gold, the alchemists explored how materials interacted and transformed. Discovering paint colors was a practical outcome. Alchemy embraced astrology, medicine, philosophy, and mysticism. And within those contexts, colors had specific meanings. A brilliant red, vermilion, was associated with chemical change and with alchemy itself. Producing vermilion involved combining two elements, sulfur and mercury, mixed and heated until a chemical reaction occurred. When ground into powder, vermilion turns deep red. Many other vibrant pigments result from chemical transformations-- mosaic gold, produced by fusing tin and sulfur in the presence of mercury; verdigris,
