Final answer:
The French Revolution had a strong effect on World War I due to the rise of nationalism in Europe.
Step-by-step explanation:
The French Revolution had a strong effect on World War I.
The French Revolution, which took place from 1789 to 1799, had a significant impact on the events leading up to World War I. One major effect of the French Revolution was the rise of nationalism in Europe. The ideas of liberty, equality, and fraternity that emerged during the revolution inspired movements for independence and self-determination in various countries, including Germany and Italy. These nationalistic aspirations and conflicts fueled tensions that eventually led to the outbreak of World War I.