SERENDIPITY
Serendipity is the occurrence of an unplanned fortunate discovery. Serendipity is a common occurrence throughout the history of product invention and scientific discovery. Serendipity is also seen as a potential design principle for online activities that would present a wide array of information and viewpoints, rather than just re-enforcing a user's opinion.
The first noted use of "serendipity" in the English 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 word has been exported into many other languages, with the general meaning of “unexpected discovery” or “fortunate chance”.