Valens was a Roman Emperor who ruled from 364 to 378 AD. He is best known for his efforts to maintain the stability of the Eastern Roman Empire during a time of internal strife and external threats. Valens faced challenges from various groups, including the Goths, who were migrating into Roman territories. During his reign, Valens made significant military decisions, including the disastrous Battle of Adrianople in 378 AD, where he was defeated by the Goths. This battle marked a turning point in Roman history, leading to increased pressure on the empire and contributing to its eventual decline. Valens died in this battle, leaving a legacy of both military ambition and vulnerability.