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.
1970 -- The first battery-operated hand-held calculators are sold. Most are too large to actually be considered pocket calculators, but they are far smaller than anything seen before. In mid-1970, Sharp begins to sell the QT-8B which, by using rechargeable batteries, is a portable version of their desk-top QT-8.