In what contexts, exactly, did Augustus use the name Octavianus?

1. Why did Octavian change his name to Augustus?
2. What did Octavius change his name to this?
3. Why did Caesar name Octavian his heir?
4. What title did Octavian take?

Why did Octavian change his name to Augustus?

Octavian chose the name Augustus for its older religious sound that helped promote his authority as the administrator of Rome. Augustus ruled until 14 CE when he was succeeded by his adopted son Tiberius as the emperor of the Roman Empire.

What did Octavius change his name to this?

Augustus was not his birth name.

Originally called Gaius Octavius, he changed his name to Gaius Julius Caesar Octavianus, aka Octavian, upon being adopted by his great-uncle.

Why did Caesar name Octavian his heir?

This young man was Gaius Octavius Thurinus, later known in history as the first Roman Emperor, Caesar Augustus. The bravery and tenacity of Octavius so impressed his great-uncle that Caesar named him his heir and successor in his will.

What title did Octavian take?

Augustus (also known as Octavian) was the first emperor of ancient Rome. Augustus came to power after the assassination of Julius Caesar in 44 BCE.