Septimius Severus was a Roman emperor who ruled from 193 to 211 AD. Born in Leptis Magna in North Africa, he rose to power during a turbulent period known as the Year of the Five Emperors. Severus is known for his military campaigns, particularly in Britain and Parthia, which expanded the Roman Empire's borders. Severus implemented significant reforms in the Roman military and government. He increased soldiers' pay and established a more loyal army, which helped stabilize his rule. His reign marked the beginning of the Severan Dynasty, which lasted until 235 AD, influencing the future of the Roman Empire.