Bratislava is a really old city that has been around for a really long time. It used to be called different things in the past like "Posonium" and "Pressburg".
Many different groups of people have lived in Bratislava throughout history. Some of these groups include the Celts, Romans, Slavs and Hungarians. These groups all had different cultures and ways of doing things.
The city was really important during the Middle Ages because it was located on a big river, called the Danube River. This made it a really important place for trade and commerce.
During the 16th century, Bratislava became the capital of Hungary and it was ruled by a powerful family, the Habsburgs. They built a really big palace in the city called Bratislava Castle.
Over the years, the city has seen a lot of changes. It has been ruled by different countries and empires, like Austria-Hungary and Czechoslovakia.
Today, Bratislava is the capital of Slovakia and is a really fun place to visit. There are lots of old buildings and museums to explore, and it's a great place to learn about history.