Al-Khemet means "From Egypt" in Arabic and 'Chemy', (as in chemistry), may have derived from the coptic word 'Kheme' which means "black" and 'Khemet' meaning "The Black Land", due to the colour of the fertile soil or silt along the River Nile. Alchemy was therefore the origin of the term 'Black Art', though this meaning has become distorted over time and loses its original significance, in the modern era. There was also a strong Greek influence in Egypt during the Ptolemaic Dynasty, where the Greek words like 'Cheo', were associated with alchemy , according to; Kathryn Harkup, in her book, 'Making the Monster: The Science Behind Mary Shelly's Frankenstein'. 'Cheo' means "to melt or to fuse', with particular reference to metals and 'chuma', a word also commonly used, refers to a certain block of metal, according to; Lawrence Principe in his book, 'The Secrets of Alchemy'. All these meanings are most likely true, considering both the Egyptians and the Greeks, not only shared ideas, but also adoped various terms which were then merged into both languages. An open mind is needed, when researching the history of alchemy, due to the numerous books and online articles that tend to focus on the Greek translations about alchemy. Although there is evidence that alchemy existed even before the Egyptian era, the well known figure that represents; Writing, science, religion, maths, geometry, philosophy, medicine and magic and of course alchemy, was the Egyptian God Thoth. Thoth represented the masculine aspect that was 'matter', whilst his feminine counterparts Seshat or Ma'at, represented the 'spirit' that was the force maintaining the Universe. This was the great harmony at play with 'matter' and 'spirit' being a crucial part of the alchemist's belief system. To the Greeks, Thoth became known as the God Hermes and much later as Mercury to the Romans. Hermes was one of the 12 Olympian Gods, who was associated with the God of trade, thieves, travelers, sports, athletes, and border crossings. He was also a guide to the Underworld. Being the second youngest Olympian God, he had more of an influence over the times when he existed in mythology, than most of the older Gods of Olympus. He was the son of Zeus and Maia, one of the seven Pleiades and daughter of the Titan Atlas. Hermes existed in various other religious sects and over time, became known as Hermes Trismegistus - "Hermes The Thrice-Greatest". It is still questioned, as to whether Hermes Trismegistus was the great influence of a real person who was perhaps a saint or a prophet named after the Olympian God Hermes. Many stories have been written, depicting a hero not unlike Hermes and this would have accounted for the theories that speak about a real person that existed with the same name, due to how popular it was to name children after Gods and Saints. Hermes could have been numerous people with a great influence compiled into one or many people, that focused on one epic story.