By the 1940s, the general interest, mass circulation magazines (with and without an emphasis on pictures) were well established. These include Life, Look, Collier’s<span>, and the </span>Saturday Evening Post<span> and others. National magazines, with circulations in the millions, were an important part of national advertising strategies of virtually all major brand name products. In 1946 magazines held 12.6 percent of the total advertising market share (van Zuilen, 1977).</span>
The Incas had developed a method of recording numerical information which did not require writing. It involved knots in strings called quipu. The quipu consists of strings that were knotted to represent numbers. A number was represented by knots in the string, using a positional base 10 representation.
“handle cases and controversies arising under federal law”
3/4 = 38 states that is needed to pass constitutional amendment
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