Final answer:
Nationalism has shown continued importance in events such as German nationalism after the Napoleonic wars, the spread of nationalist movements in the 1830s, and the aftermath of 1848.
Step-by-step explanation:
Nationalism has continued to be important in various events throughout history. One example is the German nationalism that emerged after the Napoleonic wars. German nationalists gathered in Wartburg, waving the black, red, and gold tricolor flag that would become the official German nation. Despite efforts to contain it, nationalism continued to spread, leading to a movement seeking German unity.
In addition, the spread of nationalism in the 1830s led to the formation of nationalist movements such as Young Italy, Young Germany, and Young Ireland. Nationalists believed that each people should inhabit their own nation, governed by their own people, which they felt would lead to peace and prosperity for everyone.
Another event that highlighted the importance of nationalism was the aftermath of 1848. The power of nationalism was evident as Hungary and Italy sought independence from their respective powers. Conservative monarchs themselves began to adopt nationalist elements to maintain their power.