" to codify gender stereotypes and normative heterosexuality". Hadrian enacted, through the jurist Salvius Julianus, the first attempt to codify Roman law. New laws were crafted to codify some Christian beliefs and practices. However, many treaties are attempts to codify pre-existing customary law. However, it did not quite codify defamation law into a single statute. This atlas was the first attempt to systematically codify nautical maps. The staffers alerted Congressional allies who took steps to codify the sanctions into law. There were various attempts to codify rules of football in the mid-19th century. Several attempts were made throughout history to codify international law. The company might want to design a framework to codify and support this global strategy. Such issues made attempts to codify the compositions in a uniform manner impossible. Some aspects of American culture codify racism. Pythagoras created a tuning system and helped to codify musical notation. Baker was among the first to codify the largely aural tradition of jazz. The Egyptians were one of the first major civilizations to codify design elements in art.