Trajan (/ˈtreɪdʒən/; Latin: Imperator Caesar Nerva Traianus Divi Nervae filius Augustus; September 18, 53 – August 8, 117 AD) was Roman emperor from 98 AD until his death in 117 AD. Officially declared by the Senate as optimus princeps ("the best ruler"), Trajan is remembered as a successful soldier-emperor who presided over the greatest military expansion in Roman history, leading the empire to attain its maximum territorial extent by the time of his death.