Showing results by author "Edward G. Gray" in All Categories

Acclaimed historian Edward Gray offers the first comprehensive narrative of the America's defining border. Formalized in 1767, the Mason-Dixon Line resolved a generations-old dispute that began with the establishment of Pennsylvania in 1681. In 1780, Pennsylvania's Act for the Gradual Abolition of Slavery inaugurated the next phase in the Line's history. Proslavery and antislavery sentiments had long coexisted in the Maryland-Pennsylvania borderlands, but now African Americans faced a boundary between distinct legal regimes.

Thomas Jefferson praised Tom Paine as the greatest political writer of the age. The author of Common Sense and Rights of Man, Paine helped make revolutions in America and France. But beyond his inspiring calls to action, Paine harbored a deeper political vision for his adopted country. It was embodied in an architectural project that he spent decades planning: an iron bridge to span the Schuylkill River at Philadelphia.