Gin is a hard alcohol flavored with the seeds of the juniper bush. Gin is a rather dry alcohol and is rarely drunk on its own, but used instead as a base for many different types of drinks. Good gin is very smooth, with a strong juniper flavor exciting the senses.

The name gin is most likely a derivation of the Dutch word genever, which simply means 'juniper'. This word comes from the Latin juniperus via Old French genevre. Others hold that the name gin is a shortening of the city name Geneva in Switzerland.

The invention of gin is usually attributed to a Dutch physician in the 17th century, though there is some contention in this area, with many claiming that the Italians had been drinking a nearly identical liquor for some time before this. Whatever the case may be, it was in Holland that gin first achieved real popularity, being widely sold as a tonic to treat gallstones, rheumatism, and stomach aches. Juniper was added not only for flavor, but because the berries have a number of healing properties, including acting as a diuretic and helping with arthritis.

From the Netherlands, gin spread to England, where it quickly achieved mass appeal. The flavor was simplified somewhat from the Dutch gin, which was often aged in wooden casks and took on more complex flavors. When, in the early 18th century, the British government allowed gin to be stilled without a license, the market truly took off. By the middle of the 18th century, substantially more gin was being produced and consumed in England than beer, and more than half of the bars in London specialized in gin at the time.

In the 19th century, the most popular modern style, the London dry gin, was perfected. The majority of gin produced these days is in the London dry gin style – no matter where it is produced – though some gin companies still produce a more traditional Dutch gin or Old Tom gin.

Throughout the 19th century, gin was used in colonies such as India and Southeast Asia as a way of hiding the distasteful quinine used as a protection against malaria. Quinine, in turn, was diluted in tonic water, and it was this practicality that gave birth to the ever-popular gin and tonic. Later, gin began to be used in a number of signature alcoholic drinks, including the martini, the gimlet, the salty dog, and the Tom Collins.

Modern gins may remain very simple – such as the Beefeater London dry gin, which is more-or-less the same recipe used by Beefeater when they opened shop in the early 19th century – or they may incorporate other flavoring agents or improved distillation for a crisper taste. Bombay Sapphire, for example, includes many different flavors, such as almonds, angelica, coriander, liquorice, and lemon zest, among others. Tanqueray Ten is an extremely popular high-end gin – building of the success of the already high-end Tanqueray gin – which was first produced in 2000 and has won a dazzling array of awards. This ultra-premium gin is made in small batches and produced exclusively from whole fruits, giving it a balance of taste that makes it ideal for gourmet martinis.