Thanks to the pioneering work of researchers such as William Smith, geologists in the early 1800s were able to swiftly organize rock formations into a single colossal record of Earth's history. Many geologists saw in this record a stormy epic, one in which our planet had been convulsed repeatedly by abrupt changes.
In European countries, the capacity of the common keg size is 13.21 gallons. It stands 20.94 inches high, the diameter of which is 16.06 inches. Aside from this, the next keg size has a capacity of 7.93 gallons. It has the same diameter as the 13.21-gallon keg, but it has a slightly lower height of 14.37 inches.
About 6.88 24-unit cases of 12 fl oz cans. In European countries where the metric system is used, kegs come in 25 and 50 liters as a standard. It is common to refer to the size not in liters but in beers. The standard beer size is .5 liters so a 50-liter keg would be 100 beers. However, beer kegs can come in many sizes: