Hadrian, (Publius Aelius Hadrianus; 76–138 B.C.), Roman emperor from 117 to his death, successor of Trajan. He traveled the empire, reforming and restoring imperial rule. An effective administrator and soldier, he was a talented poet and an admirer of Greek civilization. He was responsible for the construction (c.122–126) of Hadrian's Wall in Britain. His plan to build a new city at Jerusalem sparked a Jewish revolt (132–135), which he repressed.
See also: Rome, Ancient.