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Footnote
According to Encyclopedia Britannica vodka originated in Russia during the 14th century, and the name is a diminutive of the Russian voda (water). It was not originally called vodka - instead the term 'bread wine' was used. Until the mid-18th century, it remained relatively low in alcohol content, was mostly sold in taverns and was quite expensive. The first written usage of the word vodka in an official Russian document in its modern meaning is dated by the decree of Empress Elizabeth of June 8, 1751, which regulated the ownership of vodka distilleries. The taxes on vodka became a key element of government finances in Tsarist Russia, providing at times up to 40% of state revenue.