Changes

The '''[[Sigillion]] of 1583''' was is a notorious forgery composed by a Father Iakovos of New Skete on Mount Athos in 1858 [https://www.hsir.org/pdfs/2011/07/04/20110704aSigillion/20110704aSigillion.pdf], which purports to have been issued against the Calendar of Pope Gregory XIII of Rome ([[Roman Catholic Church]]) by a council convened in Constantinople.