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Ruby was the only student in her class for the first year. She and her teacher didn’t miss a single day of school. Some people seem destined to make a lasting impact on history. They might be pioneering adventurers like Mae Jemison or ordinary people, like Helen Keller, who do extraordinary things. But they share one thing in common—the desire to change the world for the better. Key Features: A You Can… feature at the end of each book that tells the reader how he or she can emulate the subject Fast facts offering interesting, sometimes little-known facts about the subject A map with key indicating where the subject was born and other significant nearby areas A timeline that recaps important moments in the subject’s life A poem about the subject G lossary with pictures www.