The four coins shown above are examples of the silver Denarius over some 450 years of both the Republic and the Empire. The coin on the upper left was struck in 211 B.C, featuring the god Roma on the face. The coin on the upper right is Julius Caesar, struck in 40 B.C. The coin on the lower left is Marcus Aurelius, struck in 161 A.D. The fourth coin is Gordian III, struck in 238 A.D.