Answer :
Final answer:
The period between 1814 and 1914 in Europe was marked by a rise in nationalist movements and a series of revolutions.
Explanation:
The period between 1814 and 1914 in Europe was marked by a rise in nationalist movements, a series of revolutions, and not a century-long era of peace. Nationalism, or the desire for self-governance and unity based on shared language, culture, and history, gained momentum during this time. This led to the unification of Italy, the unification of Germany, and other nationalist movements across Europe. Additionally, there were significant revolutions during this period, such as the French Revolution in 1830, the Revolutions of 1848, and the Russian Revolution in 1917.
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