Presented by developerWorks, your source for great tutorials ibm.com/developerWorks. Interface Definition Language Page 4. Object relationships. Once the list of the core objects comes to mind, it's time to look for relationships.
The first totally disposable diaper in the U.S. was introduced by Proctor & Gamble in 1961. The company had purchased the Charminâ Paper Company in 1957, and they assigned one of their chemical engineers, Victor Mills (1897-1997), to look into creating new paper products.
Before the advent of disposable diapers, nearly 90 percent of children were potty trained before they were 2 years old. In fact one study says in 1957, 92 percent of children were toilet trained by 18 months. The invention of disposable diapers in 1961 changed all that. Since then the age has been inching older.