These People May Have Saved Your Life and You Wouldn’t Even Know It

There are many people throughout history who have invented things that may have not only improved your life but could have saved it. It’s often the relatively unknown characters though, who you never learned about in history class, who made the real difference.

From revolutionary inventions to people with rare, life-saving blood types, there are some unsung heroes who most folks never even knew existed. These people silently left their indelible mark on history and even saved the world.

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