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.
The answer to this question depends on your definition of a computer. The earliest computers were mechanical devices used to help people count. The first known counting devices or tools were Tally Sticks from about 35,000 BCE.The abacus was invented, possibly by the Babylonians or the Chinese in about 2400 BCE. Still others will say the abacus is the first computer. They were  invented by the Chinese between 2600 BC and 300 BC is considered as  the first computer ever. Abacus was used by the merchants and  Clerks in China.