Regarding Mother's writings and their use as authority on points of history and chronology, Mother has never wished our brethren to treat them as authority regarding the details of history or historical dates. The great truths revealed to mother regarding the controversy between good and evil, light and darkness, have been given to her in various ways, but chiefly as flashlight views of great events in the lives of individuals and in the experiences of churches, of bands of reformers, and of nations. What has thus been revealed to her she has written out first briefly in the Early Writings, then more fully as in Spiritual Gifts and in Spirit of Prophecy, and finally in the Great Controversy series. 3SM 446.3
When writing out the experiences of Reformers in the time of the Reformation and in the great Advent Movement of 1844, Mother often gave at first a partial description of some scene presented to her. Later on she would write it out more fully, and again still more fully. I have known her to write upon one subject four or five times, and then mourn because she could not command language to describe the matter more perfectly. 3SM 447.1
When writing out the chapters for Great Controversy, she sometimes gave a partial description of an important historical event, and when her copyist who was preparing the manuscripts for the printer, made inquiry regarding time and place, Mother would say that those things are recorded by conscientious historians. Let the dates used by those historians be inserted. At other times in writing out what has been presented to her, Mother found such perfect descriptions of events and presentations of facts and of doctrines written out in our denominational books, that she copied the words of these authorities. 3SM 447.2
When Controversy was written, Mother never thought that the readers would take it as authority on historical dates or use it to settle controversy regarding details of history, and she does not now feel that it should be used in that way. Mother regards with great respect the work of those faithful historians who devoted years of time to the study of God's great plan as presented in the prophecy, and the outworking of that plan as recorded in history. 3SM 447.3
In past years whenever definite proof has been found that the writers of our Adventist literature had come short of finding the exact proof regarding details, Mother has taken her position in favor of correcting those things that were clearly found to be in error. When she was consulted about the efforts that were being made to revise and correct the good book Daniel and Revelation, she has always opposed making many changes, and has always favored correcting those things that were plainly shown to be incorrect. 3SM 447.4