Augustus.

Augustus was the first Roman emperor, ruling from 27 BC until his death in AD 14. Born Gaius Octavius Thurinus, he was adopted by his great-uncle Julius Caesar and became his heir. After Caesar's assassination in 44 BC, Augustus became embroiled in a power struggle known as the Roman Civil Wars, eventually emerging victorious and establishing himself as the sole ruler of Rome.

During his reign, Augustus implemented a series of political, social, and economic reforms that laid the foundations for the Roman Empire. He centralized the government, established a standing army, and created a system of public welfare for the citizens of Rome. Augustus also initiated a period of peace and stability known as the Pax Romana, which lasted for over 200 years.

Augustus was a shrewd and strategic ruler, earning the admiration of his people and cementing his place as one of the most influential figures in Roman history. He died in AD 14 at the age of 75 and was succeeded by his stepson Tiberius. The month of August is named after him in honor of his birth month.