History of the Roman Empire founder of the brief Flavian dynasty, to be followed by the Nerva–Antonine dynasty which produced the "Five Good Emperors": Nerva, Trajan, Hadrian, Antoninus Pius and the philosophically inclined Marcus Aurelius. In the view of the Greek historian Dio Cassius, a contemporary observer, the accession of the emperor Commodus in 180 AD marked the descent "from a kingdom of gold to one of rust and iron"—a famous comment which has led some historians, notably Edward Gibbon, to take Commodus' reign as the beginning of the decline of the Roman Empire. In 212, during the reign of Caracalla, Roman citizenship was granted
The History of the Decline and Fall of the Roman Empire my intention to expatiate with the same minuteness on the whole series of the Byzantine history." However the Russian historian George Ostrogorsky writes, "Gibbon and Lebeau were genuine historians—and Gibbon a very great one—and their works, in spite of factual inadequacy, rank high for their presentation of their material." Gibbon's initial plan was to write a history ""of the decline and fall of the "city" of Rome"", and only later expanded his scope to the whole Roman Empire: If I prosecute this "History", I shall not be unmindful of the decline and fall of the "city" of Rome; an interesting