Heritage
Yellow ochre is, with red ochre, among the oldest pigments humans have used. Indian Yellow — historically made from the urine of cows fed only mango leaves — is best known from Rajput and Mughal miniatures of the 16th to 19th centuries, before falling out of use. Chrome yellow, an early-19th-century pigment, gave Van Gogh his sunflowers (and is slowly darkening in them); cadmium yellow followed in the 1840s. Synthetic diarylide yellows are now the workhorses of process-color printing.
