Tanqueray No. 10 is a London dry gin, like Bombay Sapphire and Beefeater, and is made with an uncomplicated lineup of botanicals that lets the ingredients speak for themselves. Last year, Tanqueray made our list of the Best Sipping Gins, and care was even put into the name of this spirit, with the number 10 holding significant meaning.

According to John DeBary of Food Network, the specific still — or distilling setup — used to produce Tanqueray No. 10 is also imprinted with the number 10. This still has been used by Tanqueray for 200 years, earning it the nickname "Old Tom," and it may be labeled "10" because founder Charles Tanqueray was born in 1810.

Ultimately, we don't know why "Old Tom" bears this number, and it may be completely arbitrary. Much more concrete and important is Tanqueray's impressive history — according to Diageo senior archivist Joanne McKerchar, a Tanqueray and tonic was the first drink enjoyed in FDR's White House to commemorate the end of Prohibition.