Misc: [pot luck] what purplish colour was the first to be produced synthetically as a dye?

Questions

Pope Clement VII excommunicated England's King Henry VIII.?

Robert Greene Elizabethan dramatist (Friar Bacon), born.?

Giuseppe Arcimboldo 1st surrealist painter, dies (birth date unkn).?

E.B. White writer (Charlotte's Web, Elements of Style), born.?

Gough Whitlam (ALP) Australia, PM (1972-75), born.?