Final answer:
France was established as the strongest nation in Europe as a result of the French Revolution and the Hundred Years' War.
Step-by-step explanation:
The strongest nation in Europe, France, was established as a result of various historical events. One significant event was the French Revolution in the late 18th century, which challenged the traditional order of society and led to the restructuring of the French monarchy and government. Another important factor was the Hundred Years' War (1337-1453), which contributed to the rise of a strong French monarchy and a sense of national identity.
The French Revolution marked a turning point in European history, as it introduced new ideas of nationalism and equality. The revolutionaries declared themselves representing the whole nation and fought for la patrie, the fatherland, rather than allegiance to a king or church. The revolution also led to the erosion of the privileges of the nobility and the establishment of a more centralized government in France.