Constantines are a type of ancient Roman coin that were first introduced by the Emperor Constantine the Great in the early 4th century AD. These coins were made of bronze and were used throughout the Roman Empire as a standard currency. The name "constantine" is derived from the emperor's name, reflecting his significant influence on the economy and coinage of the time. The design of constantines often featured images of Constantine himself, as well as symbols of Christianity, which became prominent during his reign. These coins played a crucial role in trade and commerce, helping to stabilize the economy of the Roman Empire during a period of transition and growth.