Final answer:
The Reign of Terror during the French Revolution challenged the perception and legacy of the revolution. A parallel event with a tainted legacy is the Russian Revolution of 1917.
Step-by-step explanation:
The Reign of Terror, which took place during the French Revolution, had a significant impact on the perception and legacy of the revolution. While the revolution itself was seen by some as a triumph of republican government over monarchy, the extreme violence and repression of the Terror tarnished this view. It raised questions about the applicability of the revolution's ideals of liberty, equality, and democracy.
One historical event that may parallel this and had its legacy sullied is the Russian Revolution of 1917. While the revolution aimed to establish a socialist society and improve the lives of the working class, the subsequent rise of a dictatorial regime under Stalin and the atrocities committed during his rule undermined the initial goals and ideals of the revolution.