In the United States, milk products have to be listed as a potential allergy warning if the food contains them. Most manufacturers will individually include whey in the ingredient list as well, particularly if the product is not strictly considered a dairy product.
1960's Sowing the seeds of the calculator revolution. Early 1960's -- Mechanical calculators, slide rules, or paper and pencil are the world's main methods of calculation. As was true in the 1940's and 1950's, early 1960's calculators are complicated motor-assisted mechanical adding machines with no other electronic parts.
It has been in use for over three thousand years. However, it's really more of a counting aid. A human still does the actual computations. The Greeks invented a type of mechanical computer in the first century BC that was meant to calculate astronomical events.This is the first instance I know of that an actual machine performed the calculations. Charles Babbage invented the Difference engine back in 1822 and the Analytical Engine in 1837.t has been in use for over three thousand years. However, it's really more of a counting aid. A human still does the actual computations. The Greeks invented a type of mechanical computer in the first century BC that was meant to calculate astronomical events.