Valerian and his son Gallienus did their best to hold the Empire together through the 250s AD, but after Valerian was captured by the Sassanids things quickly spiraled out of control.

After the Battle of Abrittus, Trebonianus Gallus was proclaimed Emperor. After reigning for two years he was ousted by Aemilianus, who lasted less than a month on the throne before being ousted by Valerian.

In 249 AD Decius ousted Philip the Arab and ascended to the Imperial throne. Two years later though, Decius was dead after leading the legions to a massive defeat at the hands of the Goths.

Gordian III died in 244 AD and was succeeded by his Praetorian Prefect Philip the Arab. While Philip dealt with internal revolts and external invasion, he found time to celebrate Rome's 1000th birthday in 248 AD.

By August of 238, the other five men who had claimed a share of the purple were dead, leaving 13-year-old Gordian III as the last man standing.

In 238, a revolt in Africa sparked a revolution in Rome that would eventually lead to six different men claiming the title of Augustus.

After bungling a campaign in the east, Alexander headed to the Rhine where he was assassinated by Maximinius Thrax in 235 AD.

Alexander was only 13 when he ascended to the throne in 222. With the help of his mother and a few key advisers, he managed to avoid being the kind of disaster that previous teenage Emperors had been.

Elagabalus became Emperor in 218 AD at the tender age of 14. His short reign was defined by a scandalous private life and an obsession with the eastern sun god El-Gabal.