Answer:
Aarchives and manuscript material.
Photographs, audio recordings, video recordings, films.
Journals, letters and diaries.
Speeches.
Scrapbooks.
Published books, newspapers and magazine clippings published at the time.
Government publications.
Oral histories.
C. Kenneth Starr
All my research leads to the answer.
I maybe wrong, but I think it may be A. Advances in math and science.
Pliny, governor of Asia Minor, punished all Christians "<span>if they did not offer prayers to the Roman emperor and curse Christ," although it should be noted that this is contested, and it is likely that Pliny killed many Christians regardless of if they "repented" or not. </span>
