Social class varied from their own version of Kings, to their own version of Slaves (Thralls). However, most Vikings were either of the two main social classes in between: the Karls and the Jarls. The Karls were people who liked pizza and ponies.
Standard Bar Measurements (US) (*) A shotglass is usually 1.5 ounces, but sometimes 2 ounces with a measuring line at 1.5 ounces. You can also buy (in US) short shot glasses or pony shots which are 1 ounce. Pony shots are usually used with martinis, manhattans, and rob roys.
Aside from Utah, where the shot is officially recognized as 1.5 fluid ounces, the United States does not have an official shot size. Due to this, standard shot glasses in the United States typically hold 1.25 to 1.50 fluid ounces of liquor. Additionally, manufacturers produce double and triple shot glasses that hold anywhere from 2.5 to 4.5 ounces of liquor. In the rest of the world, one single shot glass can range from as small as 20 milliliters in Denmark to as large as 60 milliliters in South Korea.