the roman general who began a new system of military
Diocletian Diocletian (/ˌdaɪ.əˈkliːʃən/; Latin: Gaius Aurelius Valerius Diocletianus Augustus), born Diocles (244–312),[3][5] was a Roman emperor from 284 to 305. Born to a family of low status in Dalmatia (Roman province), Diocletian rose through the ranks of the military to become roman cavalry commander to the Emperor Carus. After the deaths of Carus and his son Numerian on campaign in Persia, Diocletian was proclaimed emperor. The title was also claimed by Carus' other surviving son, Carinus, but Diocletian defeated him in the Battle of the Margus. Diocletian's reign stabilized the empire and marks the end of the Crisis of the Third Century. He appointed fellow officer Maximian as Augustus, co-emperor, in 286.
Crisis of the Roman Republic Likewise, the causes and attributes of the crises changed throughout the decades, including the forms of slavery, brigandage, wars internal and external, land reform, the invention of excruciating new punishments,[2] the expansion of Roman citizenship, and even the changing composition of the Roman army.[3]