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Liters to Gallons, Converter Guide
Liter's roots are in France. It came a day when winemakers needed to measuring unit for their wine bottles. Gallon's roots are coming from England. There came a day when the beer brewers needed an clear unit to measure beer!
THE HISTORY OF THE LITRE
The liter is coming from France. It was introduced in 1795 as one of the new "republican units of measurement." One litre of liquid water has a mass of one kilogram.
In 1901, the liter was defined as the volume of one kilogram of pure water at 4 °C (39.2 °F) and standard atmospheric pressure.
In 1964, at the 12th General Conference on Weights and Measures, it was decided to return to the original definition of the litre. A liter is now a special name for a cubic decimeter, that is, it is exactly 1 dm3.
THE HISTORY OF THE GALLONS
In the early days, Gallon was a system for measuring wine and beer in England. The wine gallon was equal in size to the US gallon. The beer gallon was the larger imperial gallon.
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In 1824, the Weights and Measures Act in Britain established the official new Imperial gallon, considerably larger than the United States gallon.
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The standard U.S. gallon is based on the Queen Anne wine gallon of 231 cubic inches and is about 17 percent smaller than the British imperial gallon.