Allegheny Observatory

Historical marker location:

Pittsburgh, Pennsylvania

( Marker is on Riverview Avenue, 0.2 miles west of Perrysville Avenue (U.S. 19).)

Marker installed: 1979

The first recorded U.S. flag-raising on foreign soil occurred in 1777, when the Stars and Stripes were flown during a naval battle off the coast of Quiberon Bay, France, commanded by Pennsylvania native John Paul Jones.