The Greeks where always striving for the perfect proportions in their art. Temples and other buildings were not proper unless they were proportional and symmetry. Not only the temple but also body proportions were held to a high standard, shown in sculpture. To depict the human form sets of “perfect” mathematical ratios and proportion were made. The earliest known use of these mathematics was in Egypt. The Egyptians influenced Greek sculptors in the Archaic period-- an example being the Kouros-- by making sculptures perfectly symmetrical, which also made the sculptures stiff looking. Over time, sculptors who wanted to depict the perfect human body did not base it on a real person but on a defined harmony among parts. The Classical and Hellenistic periods became increasingly interested in presenting the human body in more natural poses along with symmetry. As the years go on body ideals change and there are all these new mathematics, like the golden ratio, to figure out if one is "perfect." A video by BuzzFeed I found online shows the different idealized bodies over the centuries, specifying on women.