Changes

* Magentius, Nepotian, Vetranio, and Silvanus, who rebelled with some success against Constantine's sons.

* Magentius, Nepotian, Vetranio, and Silvanus, who rebelled with some success against Constantine's sons.

* [[Julian]] the Apostate ''(361-363)'', Constantine the Great's nephew.

* [[Julian]] the Apostate ''(361-363)'', Constantine the Great's nephew.

* [[Jovian]] ''(363-364)''

* Jovian ''(363-364)''

The final emperor to rule a united Western and Eastern Roman Empire was [[Theodosius I]] the Great ''(379-395)'', who made Christianity the dominant religion of the Roman Empire.  

The final emperor to rule a united Western and Eastern Roman Empire was [[Theodosius I]] the Great ''(379-395)'', who made Christianity the dominant religion of the Roman Empire.  

After the death of Theodosius, the Roman Empire was now more or less permanently divided into Eastern and Western sections.  The Western section ended with the deposition of the child [[Romulus Augustulus]] (a puppet of his father Orestes) by his general, the Germanic chieftain [[Odoacer]], in 476.  However, the Eastern Roman Empire continued as the [[Byzantine Empire]] until [[Constantine XI]] died in 1453, in the fall of Constantinople to the Ottoman Turks.

After the death of Theodosius, the Roman Empire was now more or less permanently divided into Eastern and Western sections.  The Western section ended with the deposition of the child [[Romulus Augustulus]] (a puppet of his father [[Orestes]]) by his general, the Germanic chieftain Odoacer, in 476.  However, the Eastern Roman Empire continued as the [[Byzantine Empire]] until [[Constantine XI]] died in 1453, in the fall of Constantinople to the Ottoman Turks.

==Roman Engineering==

==Roman Engineering==