Universal Soil Loss Equation

Historical marker location:

275 S Russell St, West Lafayette, Indiana

( Marker is on Russell Street north of Harrison Street, on the left when traveling north.)

Marker installed: 2003

Historic Landmark of Agricultural Engineering. A=RKLSCP.

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.