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.
In 1642, during the Renaissance era, Blaise Pascal invented the mechanical calculator which was the first device to perform addition, subtraction, multiplication and division on its own â an advanced version of abacus, but a primitive form of the calculator. The Leibniz Wheel.