Fragrance is a chemical mixture that has a smell or odor. It is a fusion of science and art, where chemists become creators, and where molecules make memories. Fragrances are designed with care, passion, and ingenuity to give pleasure to billions of people around the world who use and enjoy fragrance every day. They are used to give the human body, animals, food, objects, and living spaces an agreeable scent. Fragrances can be defined as substances that emit and diffuse a pleasant and fragrant odor. They consist of man-made mixtures of aromatic chemicals and essential oils. The mixtures that make a fragrance may include natural and synthetic substances. Fragrances have been used for more than 4,000 years, and they have cultural and historical significance. They have been used as part of a ceremony, as an expression of status, as a demonstration of cleanliness, and as a statement of the imagination. Even in todays globalized world, scents are an expression of place, and fragrances are rooted in nature.