Okay kiddo, let me explain nationalism and the Ottoman Empire.
The Ottoman Empire was a big and powerful country that included many different types of people with different languages, religions, and cultures. They all had to live together in this one empire. But as time went on, some people started to feel like they wanted their own country based on their own culture and language.
This is where nationalism comes in. Nationalism is when people feel a strong pride and love for their own country and culture. They want to live with their own people in their own country, and not have to share with people who are different.
In the late 1800s, nationalism started to grow in different parts of the Ottoman Empire. People who were Albanian, Bulgarian, Greek, Armenian, and other ethnic groups started to want their own countries. Some wanted more power and rights within the Ottoman Empire, while others wanted to break away completely.
This caused a lot of tension and conflict within the Ottoman Empire. The rulers of the empire were mainly Muslim and spoke Turkish, so they didn't always understand or respect the cultures and languages of the different groups. This made the nationalist movements even stronger, as people felt like they were being ignored or oppressed.
Eventually, the rise of nationalism played a big role in the decline of the Ottoman Empire. The different groups started to fight against each other and the Ottoman rulers, which weakened the empire. Many of the ethnic groups were able to break away and form their own independent countries after World War I.
So, the rise of nationalism in the Ottoman Empire was when people in different parts of the empire started to feel a strong love and pride for their own cultures and languages. This led to tension and conflict, which eventually weakened the empire and allowed for other countries to be formed.