Newspaper accounts written at the time an event occurred would be considered a "primary source" since they offer relatively unbiased and unaltered material pertaining to the event in question.
Three emperors fought for the power and finally the war was won by Vespasian, part of the Flavian dynasty. The Flavian dynasty was succeeded by the Antonines (96 – 193), a generic name given to Nerva, Trajan, Hadrian, Antoninus Pius, Marcus Aurelius and Commodus.
Well it has to do with the way he said it