Hadrian (Latin: Publius Aelius Traianus Hadrianus Augustus[2][3] 24 January, 76 AD – 10 July, 138 AD), was Roman Emperor from 117 to 138. He re-built the Pantheon and constructed the Temple of Venus and Roma. He is also known for building Hadrian's Wall, which marked the northern limit of Roman Britain. In addition to being emperor, Hadrian was a humanist and was philhellene in most of his tastes. He was the third of the Five Good Emperors.