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School Library Journal
Reviewed on March 1, 2014 | Grades 5 and Up
Gr 9 Up—With her book title reflecting both theme and structure, Walker begins with the English religious boundaries that drove the Catholic Calvert family and Quaker William Penn to seek religious freedom in their respective New World colonies of Maryland and Pennsylvania. Conflicting royal land grants and imprecise surveys led to a disputed boundary between the colonies, eventually resolved by an accurate land survey conducted by British scientists Charles Mason and Jeremiah Dixon. Much of the book describes their work, one of the most technologically challenging surveys do...Log In or Sign Up to Read More
Horn Book Magazine
Reviewed on March 1, 2014
The Mason-Dixon Line dates from colonial times: while the Calverts and Penns both left England to found religiously tolerant colonies (Maryland and Pennsylvania, respectively), they feuded about the exact location of the boundary. The dispute festered for decades before the surveying team of Charles Mason and Jeremiah Dixon was hired in 1763 to solve the problem once and for all. Using their astronomical and mathematical prowess in tandem with their first-rate surveying ski...Log In or Sign Up to Read More
Horn Book Guide
Reviewed on January 1, 2014
The exact location of the boundary between the colonies of Maryland and Pennsylvania was in dispute until Charles Mason and Jeremiah Dixon were ...Log In or Sign Up to Read More