With thanx to Wikipedia for the history supplied in this page.
On June 29, 1863, the cavalry skirmish known as Corbit's Charge was fought in the streets of Westminster, when two companies of Delaware cavalry attacked a much larger Confederate force under General J.E.B. Stuart.
In April 1865, Joseph Shaw, newspaper editor, had his presses wrecked and his business destroyed, and was subsequently beaten and stabbed to death by four men in Westminster, allegedly because of an anti-Lincoln editorial that was published the week before the actual assassination. In a later trial at the Westminster Court House the four men were acquitted; the reason cited was "self-defense."
Just north of Westminster is the farm at which Whittaker Chambers hid the so-called "pumpkin papers."
A historic marker states that Westminster was the first place in the nation to offer Rural Free Delivery postal service.
Westminster is the birthplace of Sargent Shriver (1915–2011), former candidate for Vice President of the United States and brother-in-law of John F. Kennedy.
On March 10, 2006, members of the Westboro Baptist Church picketed the funeral of Matthew A. Snyder who had been killed in the Iraq War. Church members stood on city property adjoining St. John Catholic Church where the funeral took place. Snyder's father sued the church for violating his privacy. The United States Supreme Court in March 2011 ruled in Snyder v. Phelps that church members had a free speech right to picket.