“Now we first hear of the Trisagion in the 5th century, when it was apparently used as a processional antiphon during stational services in Constantinople.”
“The sliding of fault surface after stational holding results in the asperity contact of prior state to be removed, and the new population of contact reaches to a steady state after slip over a characteristic distance.”
“In the Middle Ages, the Sancta Sanctorum served as the pope's private chapel and often functioned as a staging point for the stational liturgy.”