Oenophiles are also known as "wine aficionados" or "connoisseurs". It could thus be studied and admired by many collectors, connoisseurs, artists and art historians. Cocktail connoisseurs consider the pisco sour a South American classic. Throughout the 18th century, the appreciation of Bach's music was mostly limited to distinguished connoisseurs. Blanc's book was directed at artists and art connoisseurs. They were also great connoisseurs of art and brilliant builders. Before the discovery of refrigeration, many sushi connoisseurs were at risk of contracting diseases. What connoisseurs now recognize as Trappist breweries began operations in 1838. As of 2017, the term is widely recognized among Japanese sword connoisseurs. These three eminent connoisseurs of rhetoric were significant sophists of the 2nd century AD. Even such prominent connoisseurs as Pavel Mikhailovich Tretyakov refused to buy them. "It's a film for the connoisseurs of cinema," said Sellers. Early Italian connoisseurs were divided as to whether Leonardo also drew with his right hand. It is still recognized by this name today by watch connoisseurs and horologists. He commands a significant cult following called "The Guild of Connoisseurs".