A priory is a monastery governed by a prior or prioress. An alien priory is a priory which is dependent on a foreign mother house, and an alien priory cell was a residence of two or three monks dependent on a foreign mother house but sent to exploit a distant estate. Alien priory cells were suppressed in 1414. Buddhist monastery near Tibet A monastery is the habitation of monks. ... Events Council of Constance begins. ...
Strictly speaking, a priory is a secondary house created by an existing abbey, but this distinction fell out of use in late mediaeval times. This article is about an abbey as a religious building. ... The Middle Ages formed the middle period in a traditional schematic division of European history into three ages: the classical civilization of Antiquity, the Middle Ages, and modern times, beginning with the Renaissance. ...
Descartes considered the knowledge of the self, or cogito ergo sum, to be a priori, because he thought that one needn't refer to past experience to consider one's own existence.
John Locke, in believing that reflection is a part of experience, gave a platform by which the entire notion of the "a priori" might be abandoned.
However, it is known a priori, because one metre was defined as the length of that bar, so the bar must have been one metre long (at the time it served as the standard) - it is a tautology.