Nationalism is when people feel a really strong connection to their country and think their country is the best. They might think that their country’s way of doing things is the right way, and that their country should always come first.
Ancient history is all about the way people used to live a long, long time ago. So when we talk about nationalism and ancient history together, we're talking about how people in the past might have thought about their countries and how that might have impacted the way they acted.
For example, in ancient Greece, people were really proud of where they came from and thought their city-state was the best. They would compete in big competitions like the Olympics to prove they were the best athletes, and they would fight wars with other city-states to show that their army was the strongest. They were very loyal to their city-state and would do anything to make it the best it could be.
Similarly, in ancient Rome, people were really proud to be Roman and thought that the Roman Empire was the best in the world. They would build big monuments and buildings to show off how great Rome was, and they would fight wars with other countries to expand the Roman Empire even more.
Today, many countries still feel a strong sense of nationalism and pride in their history and culture. But it's important to remember that every country has its own unique history and culture, and no one country is better than another. It's also important to be respectful of other cultures and countries, and to work together to create a more peaceful and understanding world.