Diapers have always been a necessity for new parents, documentation of makeshift diapers dates all the way back to 4000BC in Central Asia. Various methods to keep babies clean and tidy have been in practice since the start of humanity. However, some of the methods, like swaddling, would cause skin ulcerations, crying, or disease. In Ancient times, mothers would use animal skin and leaves to contain the waste of their children. The more modern versions of diapers came into use in the 1800s. Cloth diapers were extremely popular, using a square piece of cotton or linen and a safety pin or clips to hold it in place. Mothers learnt to boil the cloth before reusing them when they became more aware of bacteria in the early 1900s. In 1942, in Sweden, a man came up with the first diaper to have an absorbent pad made of unbleached creped cellulose tissue. In the 1960s, after the invention of pulp mills, disposable diapers began to be made of cellulose fibres instead of paper. Disposable diapers grew in popularity in the 1970s and have since become the more popular option. Unfortunately, these disposable diapers have many negative effects on the environment and have spurred many debates about their continuous use.