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
Kim (given name) – where the child was born. From the 1900s to the 1960s, the name Kim was mainly given to boys, despite the use of this name for both male and female characters in popular literature and, later, movies of the time. In Scandinavia Kim can more often be used as a male name in its own right, being a common short form of Joakim. In Russia (Kim) is a diminutive/nickname of Ioakim (), "Joachim". Its popularity in the early Soviet era was explained as it being also the acronym for (Kommunistichesky Internatsional Molodyozhi, Young Communist International). Kim (given name) Kim