Serendipity language was by Horace Walpole in 1754. In a letter he wrote to his friend Horace Mann, Walpole explained an unexpected discovery he had made about a (lost) painting of Bianca Cappello by Giorgio Vasari by reference to a Persian fairy tale, "The Three Princes of Serendip". The princes, he told his correspondent, were "always making discoveries, by accidents and sagacity, of things which they were not in quest of". The name comes from "Serendip", an old name for Sri Lanka (Ceylon), hence "Sarandib" by Arab traders. It is derived from the Sanskrit "Siṃhaladvīpaḥ" (Siṃhalaḥ, Sri Lanka + dvīpaḥ, island).
The Three Princes of Serendip source of the word serendipity, coined by Horace Walpole because of his recollection of the part of the "silly fairy tale" in which the three princes by "accidents and sagacity" discern the nature of a lost camel. In a separate line of descent, the story was used by Voltaire in his 1747 "Zadig", and through this contributed to both the evolution of detective fiction and the self-understanding of scientific method. "In ancient times there existed in the country of Serendippo, in the Far East, a great and powerful king by the name of Giaffer. He had three sons who were