Historical Marker
Isaac Cavin
Historical marker location:
300 S. Cavin Street, Ligonier, Indiana
( Marker is at the intersection of W. 3rd Street and S. Cavin Street (State Road 5), on the right when traveling east on W. 3rd Street.)
1807 - 1884.
The first public demonstration of the electric light bulb was given by Thomas Edison in Menlo Park, New Jersey, but the first practical incandescent light bulb was invented by Lewis Howard Latimer, who was born in Chelsea, Massachusetts, but lived in Indiana for a time. Latimer was also the first African American to be employed as an engineer by the U.S. Patent Office.