History of mathematical notation back to any school or period before that of the Ionian Greeks, but the subsequent history may be divided into periods, the distinctions between which are tolerably well marked. Greek mathematics, which originated with the study of geometry, tended from its commencement to be deductive and scientific. Since the fourth century AD, Pythagoras has commonly been given credit for discovering the Pythagorean theorem, a theorem in geometry that states that in a right-angled triangle the area of the square on the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares of
The Price Is Right and his first episode airing on October 15. It is believed to be the longest-running game show on television (the Spanish-language variety show "Sábado Gigante" ended on September 19, 2015). It is also the longest running game show airing episodes five days-per-week in the world. "The Price Is Right" is one of two game show franchises (along with "To Tell the Truth") to be seen nationally in either first-run network or syndication airings in the U.S. in every decade from the 1950s onward. CBS has occasionally aired extra episodes of the show for short periods between the cancellation of one