Five Unsung Heroes Who Changed History

History books are filled with kings, conquerors, and geniuses. But what about the

heroes who changed the world without leaving their name on a castle or a treaty? <break time="2.0s" />

They are the quiet architects of our modern world, the ones who saw a crack in the foundation

of society and quietly, bravely, filled it. This is the story of five people you've

probably never heard of, whose choices saved millions and steered the course of humanity. <break time="10.0s" />

Hero #1: The Ghost Map Detective. In 1854, a deadly cholera outbreak gripped

London. The scientific establishment blamed "bad air." But Dr. John Snow, a skeptical anesthesiologist,

thought otherwise. <break time="2.0s" /> He painstakingly mapped every death and traced them all to a single