Groundbreakers introduces advancing readers to extraordinary people throughout history. Each adventure is explored in the context to the wider scientific, geographical, social, and historical framework, and features excerpts from the journals and persona06138442890-613-84428-9Alexander FlemingParker, SteveSagebrush-BoundHEINEMANNNULL2003-10-01 00:00:00.0005-8JUVENILE NONFICTION History/GeneralNULLNULLEnglish17.0500Sagebrush List PriceActiveGroundbreakers...