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.
A Zoning System in Development. In 1943, the Post Office Department implemented a system of postal zoning that was used until the debut of the new ZIP Code system in 1963. Pre-1960âs Zoning. The concept of postal zoning, or assigning numbers based on geographic regions, was not new to the 1960âs ZIP Code campaign.