Revolutionaries are individuals who advocate for significant change in political, social, or economic systems, often through radical means. They seek to overthrow existing structures and implement new ideologies, which can lead to profound transformations in society. Notable revolutionaries include figures like Che Guevara and Mahatma Gandhi, who inspired movements across the globe. These individuals often emerge during times of oppression or injustice, rallying people to their cause. Their actions can lead to revolutions that reshape nations, as seen in the French Revolution or the American Revolution. The legacy of revolutionaries continues to influence contemporary movements for change.