>>17891965
Btw, if publication date is not available, you can still discern the age of a document and location where it was written by analyzing things like writing style, sentence structures, use of names, etc
We do not have access to the original manuscript but they analyzed it based on other documents written at that time
>Msgr. Almeida explains, a careful study of the manuscript was made to determine its authenticity, comparing the text of the manuscript to other known documents of the time with regard to diction, style, commonly used expressions, etc. As a final litmus test, it was compared to the works indubitably authored by Archbishop Luis Lopez de Solis, Bishop of Quito from 1592-1606. The results of this research determined that the manuscript we presently have of The Admirable Life of Mother Mariana by Fr. Pereira was a faithful copy of the original.