One of the oldest synthetic pigments with very good hiding power, tinting strength, drying properties and chemical stability. It's a lead antimonate used as a colour tint in yellow ceramic glazes already in Babylon and Assyria and was also found in Egyptian glass of the XIX Dynasty. It was reputably a pigment in the palette of the Old Masters but generally its history is unsure. Up until the watercolour period its importance is undocumented. It has been essential to the landscape tradition because it has the quality of appearing to receed into the picture's distant plain sun like other yellows which sit in front of the plain.