Who was the first Roman Emperor?
A. Augustus Caesar
B Julius Caesar
C. Hadrian
D. Marcus Aurelius

Hint: The Roman Emperor was the ruler of the Roman Empire which was during the post Republican period of ancient Rome. The legal powers of the Emperor depended on how he controlled the army and the recognition by the Senate. The Roman Empire started in the 8th century Bc with the growth of the town of Rome.

Complete step by step answer: Augustus Caesar was the first Roman Emperor. He established the Roman Empire in 31 BC. Julius Caesar was Augustus’s great uncle as well his father who adopted him. Julius Caesar made him his chief heir. Augustus Caesar was known as Octavius. He played a major role in initiating peace during his rule which is called Pax Romana,a system of internal peace and stability. This of course did not mean without wars.
After Julius Caesar was assassinated, Augustus associated with Mark Antony,. They together eliminated many opponents. Mark Antony chased Julius Caesar’s assassins and defeated them in Philippi. Antony was the ruler of Rome’s wealthiest provinces .However the situation turned sour between Mark Antony and Augustus Caesar when Mark Antony engaged in an affair with Queen Cleopatra of Egypt.
Looking at the options:
Option A. Augustus Caesar was the heir of Julius Caesar and therefore he was the first Emperor of Rome. Hence this is the correct answer.
Option B: Julius Caesar was a Roman general and statesman. Augustus Caesar was adopted by Julius. Hence this is an incorrect option.
Option C: Hadrian was the 14th Roman emperor after Augustus and hence this is not the correct answer.
Option D: Marcus Aurelius was the 16th Roman emperor after Augustus Caesar and belonged to the Nerva–Antonine dynasty. Hence this is an incorrect answer.
Option “A” is the correct answer.

Note: Trade and cities improved during Augustus’s rule. Augustus built baths, amphitheatres and aqueducts for the entertainment of the masses. Because of his great contributions towards the development of Rome, he was known as ‘Divine Augustus’.