Original: The origin of the term is to be found in the social and economic world of Italian opera , where from the mid-18th century to the 1830s , the impresario was the key figure in the organization of a lyric season .
Simplified: Some very famous impresarios from the past include Rudolf Bing , Sergei Diaghilev , Richard DOyly Carte , Fortune Gallo , and Sol Hurok .