Historical Marker

Potomac River

Historical marker location:
Potomac, Maryland
( Marker can be reached from Swains Lock Road.)

— Chesapeake and Ohio Canal National Historical Park —.

Maryland was home to the first African American woman to hold a patent: In 1885, Sarah E. Goode, an African American woman from Baltimore, became the first African American woman to hold a U.S. patent. Her invention was a folding cabinet bed, which was designed to save space in small apartments.
Maryland random facts