How do we know they were telling the truth

The inscription on the reverse of the radiate of Aurelian illustrated at right proclaims that hi si "Restorer of the World." How believable is his claim? Did he really restore the world th the Roman Empire and people? Follow the link to read the article and judge for yourself.

Objectivity is a thorny problem when it comes to interpreting ancient sources. In many, if not most cases, there is only one surviving account of any particular event, emperor, or situation. That person may have been highly opinionated and have had a great personal stake in the events he or she describes. Indeed, the most interesting ancient writers were either highly one-sided or wrote about the social problems and scandals of their day. Anna Comnena, writing in the Eleventh Century, makes it very clear that she is praising the good deeds of her father, the Byzantine emperor Alexius Comnenus and her Alexiad exalts the Comnenus family name and very vehemently blackens the name of their enemies. Tacitus clearly displays his dislike of the imperial system and his greater dislike of civil wars in his Histories and his Annals. Sometimes, an author will confuse us even more by doing a total flip-flop on an issue. Pro

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Some common words found in the essay are:
Secret History, Fifth Centuries, Juvenal Procopius, Bronze Coinage, Roman Empire, Emperor Justinian, Sixth Century, Caligula Nero, Cassius Dio, Comnenus Alexiad, roman bronze, late roman, late roman bronze, coin hands, truly objective, bronze coin, sixth century, roman bronze coin, study history, anna comnena,
Approximate Word count = 1140
Approximate Pages = 5 (250 words per page double spaced)