The original oath was written in Ionic Greek, in the late Fifth Century BCE. It is usually included in the Hippocratic Corpus. Scholars widely believe that Hippocrates or one of his students wrote the oath between the 5th and 3rd century BC.
Age Six to Seven. Between the ages of six and seven, your child may lose his first tooth. The lower central incisors are usually the first teeth that are lost, followed by the upper central incisors. At this point, eating is slightly affected, although your child may prefer to do most of his chewing on the back teeth.
First in, first out. A child's 20 baby teeth, which typically come in by age 3, usually fall out in the order in which they came in. That means the lower center teeth (lower center incisors) are usually the first to go, around age 5 or 6. The top center pair is next. A baby tooth typically doesn't loosen until the permanent tooth below pushes it up to take its place. Some children lose their first tooth as early as 4 or as late as 7. Generally, the younger the child was when the teeth came in, the earlier they fall out. It's possible for kids to lose a baby tooth too early, before the permanent tooth is ready to erupt, because of an accident or dental disease.