Sir <a href="https://en.wikipedia.org/wiki/Horace_Walpole" id="mwZw" rel="mw:WikiLink" title="Horace Walpole">Horace Walpole</a> coins the word <i id="mwaA"><a href="https://en.wikipedia.org/wiki/Serendipity" id="mwaQ" rel="mw:WikiLink" title="Serendipity">serendipity</a></i> in a letter to a friend.