Who indeed.
No. Diocletian split the Roman Empire.
Constantine didn't split the Roman Empire. It was Diocletian, and he divided the empire into western and eastern halves.
Most canals were built after the Roman Empire split, for example the Suez Canal, the Panama Canal, and the Erie Canal.
with a pair of caesars. that is not true
Diocletian.
Once the Roman Empire split in two, the Holy Roman Empire created the Vatican.
Diocletian split the empire into eastern and western halves in order to make governing easier.
The Roman Empire had Split Several times One such time would be Alexander the Great dividing his lands amongst his generals. Where as The Roman split into the East and West Empires Near the Byzantine Empire.
eastern and western
Constantine
Constantine
The spread of Christianity had political ramifications for the Roman Empire. The empire split into two, Constantinople to the east and Rome to the west