Constantine the Great minted a variety of coins during his reign from 307-337 AD. He used this medium to communicate his victories and his power over the Roman Empire. Many coins paid tribute to the army as Constantine knew it was the backbone of his authority. During his rule, he established Christianity as the state's religion, thus creating the foundation of faith in Europe. Though his coins were not overtly Christian, their lack of pagan symbols spoke loudly. When Constantine died in 337 AD, Constantius II, his son, continued to mint coins. Until 347 AD, the coins were a tribute to his father, and, afterwards, they continued to have the simialr themes as those of Constantine: soldiers, armored busts, and images of battle.