<span>Post-classical history is a periodization commonly used by the school of "world history" instead of Middle Ages which is roughly synonymous. The period runs from about 500 to 1450 AD though there may be regional differences and debates. Hope this helps!!!</span>
A precedent is a previously made court decision that is used as a guideline for future cases. When an unfamiliar problem comes to court, the resulting decision may become a precedent for a similar future case.