Could there be a more opportune moment for an authoritative book on the border crisis? No, not that border, and not today’s crisis, but the dispute that once raged over where Pennsylvania ended and ...

If parts of York County’s story are new to those in the OLLI at Penn State York classes that I teach, then they likely aren’t widely known. I’ve found those 50-plus-year-old students really are on top ...

Keystones aren’t the only stones indelible to Pennsylvania’s character. Limestone monuments marking each mile of the Mason-Dixon Line — a survey line dating back to the 1760s intended to resolve a ...

Introduction : Sharpsburg, Maryland, 1803 -- "The land flows with milk and honey" : agriculture and labor in the early republic -- "A strange reverse of fortune" : panic, depression, and the ...

Philip Kennicott's article on George Washington and his slaves in Philadelphia ["Plain as Dirt: History Without Gimmickry," Style, July 4] was excellent. It should be pointed out, however, that ...

I'm driving along the Mason-Dixon line. Todd Babcock, a land surveyor and amateur historian, rides shotgun. It is a glorious day. The windows are down. The air smells like cut grass. We're cruising ...

Part I: Marchlands in Motion. Lord Baltimore's Northern Problem -- William Penn's Unlikely Empire -- The Battle for Maryland's Far North -- Part II: Marchlands into Borderlands. The Squatters' Empire ...

(This is the first of a series of occasional columns about York County and its relationship with the Mason-Dixon Line. The second column will be published on April 16.) If parts of York County’s story ...