“On October 29, 1929, the stock market crashed, the Great Depression began, and advertising expenditures plummeted. In the face of consumer sales resistance and corporate budget cutting, the advertising industry needed to improve its effectiveness. It turned to research. Daniel Starch, A. C. Nielsen, and George Gallup had founded research groups to study consumer attitudes and preferences. By providing information on public opinion, the performance of ad messages, and sales of advertised products, these companies started a whole new business: the marketing research industry.”
P.S., making calculators appear to be walking can be an extremely challenging trick to complete in PowerPoint.