Casimir Pulaski

Historical marker location:

1461 Baltimore Pike, Chadds Ford Township, Pennsylvania

( Marker is on Baltimore Pike (U.S. 1), on the right when traveling south.)

Marker installed: 1975

Pennsylvania was the site of the deadliest nuclear accident in U.S. history. In 1979, a partial meltdown occurred at the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania.