Abnormal posturing is different from bad posture or slouching.. Instead, it involves holding a body position, or moving one or more parts of the body in a certain way. Abnormal posturing may be a sign of certain injuries to the brain or spinal cord.
Follow @TIME. 1963 was a momentous year in America: President John F. Kennedy was assassinated, Martin Luther King Jr. delivered his âI Have a Dreamâ speech at the March on Washington and, somewhat less heralded by all but the most fervent postal historians, the ZIP code was introduced.
ZIP Code began on July 1, 1963, as scheduled. Use of the new code was not mandatory at first for anyone, but, in 1967, the Post Office required mailers of second- and third-class bulk mail to presort by ZIP Code. Although the public and mailers alike adapted well to its use, it was not enough.