On April 21, 1865, the funeral train bearing the body of assassinated President Abraham Lincoln passed through York County, PA, enroute to Harrisburg.
After the Civil War, PA residents could file border claims for the damages inflicted by the Confederate or Union soldiers, including stolen horses. More than 800 York Countians filed such claims. None received a dime from the commonwealth.
The leading newspaper in York PA strongly supported the 1850 Fugitive Slave Law and chastised the governor for obstructing it after the Christiana Riot.
The controversial 1842 Supreme Court decision in the Prigg vs. Pennsylvania legal case was a spark on the path to civil war. It had York County roots.