Why was octavian important to roman history

Octavian was the empire's first emperor, aka first citizen?

Explanation:

After Caesar's assassination in 44 AD March 15th, the second triumvirate fought Brutus and Cassius, the assassins of Caesar. This ended up in a showdown between Mark Antony and Octavian, which Octavian won. Octavian renamed himself Augustus, meaning son of god, and is the first emperor of Rome, even though he attempted to rebuild the republic. Octavian's new empire had the emperor dominating everything, including religion etc. He also set up the Pax Romana, which lasted for 2 centuries after his death and allowed Rome to grow to its peak.

answer; elasticity of the lungs decreases;

answer; (d) all of the above; 100%