Gibson (cocktail) bartenders' guides sometimes gave the recipe as 50/50 gin and vermouth, Gibsons in the early days were much drier than other martinis. A third version, supported by Kazuo Uyeda in "Cocktail Techniques", states that Gibsons started as very dry martinis garnished with a cocktail onion to distinguish them from traditional martinis, but as the fondness for drier martinis became popular the onion became the only difference. There is no direct evidence that Charles Dana, or any other Gibson, created the drink. But, Charles Dana Gibson was certainly the artist who created the Gibson Girl illustrations—popular from the 1890s through about
Gin and tonic of water, sugar, lime and gin to the quinine in order to make the drink more palatable, thus gin and tonic was born. Soldiers in India were already given a gin ration, and the sweet concoction made sense. Since it is no longer used as an antimalarial, tonic water today contains much less quinine, is usually sweetened, and is consequently much less bitter. Gin and tonic is a popular cocktail during the summer. A 2004 study found that after 12 hours, "considerable quantities (500 to 1,000 ml) of tonic water may, for a short period of time, lead to quinine