Differences between the ancient Greeks and ancient Romans.
You can start with art. The Greeks wanted perfection in their depiction of people. The Romans want real life people. The Greeks statues were of perfect people. The Romans statues contained all the flaws of real people.
The Greeks colonized. They established some colonies on the coastline around the Mediterranean Sea. The Romans conquered and ruled all over the Mediterranean.
The Romans built roads that connected their empire to Rome. The Greeks built roads to connect two specific cities.
The Romans created an Empire which lasted 500 years. The Greeks were city-states and were not united under one central government (except for the empire of Alexander the Great).
In Ancient Greece women had no rights. They were property.
In Rome, under the king and in the republic, women were not property, but they had no rights. During the Empire, Roman women had quite a few rights, but were still not citizens.
The Greeks spoke Greek. The Romans spoke Latin.
These are just a few of the differences between these two ancient civilizations. Can you think of any more?