Hadrian (/ˈheɪdriən/; Latin: Publius Aelius Hadrianus Augustus; 24 January, 76 AD – 10 July, 138 AD) was Roman emperor from 117 to 138. He rebuilt 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 Britannia. Hadrian was regarded by some as a humanist and was philhellene in most of his tastes.