Upon a close examination of history, one notices that soap appears at every phase. However, the most common occurance is in "cleaning".
Based on evidence, the first use of soap is 2500 - 3000 B.C, and then, they were manufactured by Phoenicians, using fat from goats and charcoal ashes. As the time passed, lime and other animal fats were used. Use of olive oil in soap manufacturing started later, when vegetable oil usage was preferred to fats. In the middle ages, the center of soap production was in Marseilles. The famous "Savon de Marseille" (Marseilles Soap) was made with olive oil.
Originally, the soap produced was used for laundry, rather than body cleansing, due to the hard texture. Use of soap for bathing starts around 18th Century in Europe, and 19th century in North America.
It is surprising to know that, most of the soap used today is produced with the methods used in the end of 1800s. Animal fat is widely used in the soap available in the market today. Unless explicitly written to be made from vegetable oil on the packaging, one can assume that animal fat is used. Green colored soaps, said to be made from olive oil, are mostly made from production residue, or olive seed oil, rather than vırgın olive oil. Soaps made from virgin olive oil are white colored and odorless. These soaps made from virgin olive oil, which are safe for the body and environment, are the best.
Olive oil, which is not only a nutrition, has also been regarded highly in medicine, as well as cosmetics, for thousands of years. It plays a major role in the beauty and well-keeping, youth and health, whiteness of the teeth, hydration skin, bright, soft and dandruff-free hair, wrinkle-free face, strong nails, protection against sun, treatment of sunburns. It is used in variety of fields from medicine to beauty, from cooking to natural soap-making, from squeaking doors to polishing furniture.
Since natural olive oil contains very low saturated fatty acid (oleic acid), vitamin E with antioxidants, and vitamins A, D and E, it has been used for medicine and cosmetics for centuries.
As famous Italian Pofesssor Publio Viola put it,"if it was not out there, we had to invent it ...".