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
18th-century history of Germany 18th-century history of Germany From the 1680s to 1789, Germany comprised many small territories which were parts of the Holy Roman Empire of the German Nation. Prussia finally emerged as dominant. Meanwhile, the states developed a classical culture that found its greatest expression in the Enlightenment, with world class leaders such as philosophers Leibniz and Kant, writers such as Goethe and Schiller, and musicians Bach and Beethoven. Germany, or more exactly the old Holy Roman Empire, in the 18th century entered a period of decline that would finally lead to the dissolution of the Empire during the Napoleonic Wars. Since