History is filled with people who have done remarkable things. Groundbreaker Bios tells the life stories of some of the world's most notable people, both past and present, and how they've changed the world in their own unique ways. Features: A wide variety of high-interest topics, Well-researched, clearly written informational text, Primary sources with accompanying questions, Multiple prompts and activities for writing, reading, and critical thinking, Charts, graphs, diagrams, timelines, and maps Book jacket.