Here's how the facts apply to Sparta, Athens, or Both:
| Fact | Sparta | Athens | Both |
|---------------------------------|--------------|--------------|-------------|
| Military life | ✔️ | | |
| Oligarchy | ✔️ | | |
| Democracy | | ✔️ | |
| They spoke Greek | | | ✔️ |
| They had a social class system | ✔️ | ✔️ | |
| Luxury | | ✔️ | |
### Explanations:
- **Military life**: Sparta was known for its militaristic society, while Athens emphasized education and culture.
- **Oligarchy**: Sparta was ruled by a small group of leaders (two kings and a council of elders).
- **Democracy**: Athens is famous for developing democracy, where citizens participated in decision-making.
- **They spoke Greek**: Both Sparta and Athens were Greek city-states, and thus both spoke the Greek language.
- **They had a social class system**: Both had social hierarchies, though structured differently (Sparta with its rigid class of Spartiates, Helots, and Perioikoi; Athens with citizens, metics, and slaves).
- **Luxury**: Athens was known for its cultural achievements and luxury, while Sparta emphasized austerity and simplicity.