7 books · Ages 5–13 · Chapter Books
Fact Finders is a 7-book series for ages 5–13 by B. A. Hoena. Each book stands alone — start anywhere.
Start anywhere — each book stands alone.
That said, Benjamin Banneker: Astronomer and Mathematician and Langston Hughes: Great American Writer are great first picks.
No particular order needed — browse and pick what catches your eye.