Sources : He-goat

Herodotus [c. 484 – c. 425 BCE] (Histories, Book 3.112) But gum-mastich, which Greeks call ledanon and Arabians ladanon, is yet more strangely produced. Its scent is most sweet, yet nothing smells more evilly than that which produces it; for it is found in the beards of he-goats, forming in them like tree-gum. This is used in the making of many perfumes; there is nothing that the Arabians so often burn for fragrance. - [Godley translation]