In its original form encryption was first used by the ancient Egyptians, Mayans, then the Greeks and Romans in wartime and politics. They used it as a security practice to encode messages that can deceive the enemy.
Small, white bumps that are present on the skin may be keratosis pilaris, otherwise known as keratin spots, which is caused by keratin accumulating underneath the skin, as reported by WebMD. Keratosis pilaris is a harmless skin condition, and the bumps can appear basically anywhere on the body like on the thighs, facial regions, buttocks and arms.
Vitiligo is a continual and long-term skin problem that produces patches of white depigmentation that develop and enlarge in certain sections of the skin. The patches appear when melanocytes within the skin die off. The total area of skin that can be affected by vitiligo varies greatly from individual to individual.