Roman subjects in the province of Africa revolt against Maximinus Thrax and elect Gordian I as emperor.

Gaius Julius Verus Maximinus "Thrax" ("the Thracian"; c.173 238) was Roman emperor from 235 to 238.

His father was an accountant in the governor's office and sprang from ancestors who were Carpi (a Dacian tribe), a people whom Diocletian would eventually drive from their ancient abode (in Dacia) and transfer to Pannonia. Maximinus was the commander of the Legio IV Italica when Severus Alexander was assassinated by his own troops in 235. The Pannonian army then elected Maximinus emperor.In 238 (which came to be known as the Year of the Six Emperors), a senatorial revolt broke out, leading to the successive proclamation of Gordian I, Gordian II, Pupienus, Balbinus and Gordian III as emperors in opposition to Maximinus. Maximinus advanced on Rome to put down the revolt, but was halted at Aquileia, where he was assassinated by disaffected elements of the Legio II Parthica.

Maximinus is described by several ancient sources, though none are contemporary except Herodian's Roman History. He was a so-called barracks emperor of the 3rd century; his rule is often considered to mark the beginning of the Crisis of the Third Century. Maximinus was the first emperor who hailed neither from the senatorial class nor from the equestrian class.

Africa Proconsularis was a Roman province on the northern African coast that was established in 146 BC following the defeat of Carthage in the Third Punic War. It roughly comprised the territory of present-day Tunisia, the northeast of Algeria, and the coast of western Libya along the Gulf of Sirte. The territory was originally inhabited by Berber people, known in Latin as Mauri indigenous to all of North Africa west of Egypt; in the 9th century BC, Phoenicians built settlements along the Mediterranean Sea to facilitate shipping, of which Carthage rose to dominance in the 8th century BC until its conquest by the Roman Republic.

It was one of the wealthiest provinces in the western part of the Roman empire, second only to Italia. Apart from the city of Carthage, other large settlements in the province were Hadrumetum (modern Sousse, Tunisia), capital of Byzacena, and Hippo Regius (modern Annaba, Algeria).