- The First Automobile gas Station - December 1913 - built by Gulf Refining Company in Pittsburgh.
- The First Zippo Lighter - 1932 - George G. Blaisdell invented the Zippo lighter in 1932.
- The First Polio Vaccine - March 26, 1953 - The first polio vaccine was developed by Dr. Jonas Salk, a 38 year old University of Pittsburgh researcher and professor.
- The First Baseball Stadium in the U.S. - 1909 - Forbes Field was built in Pittsburgh, followed by similar stadiums in Chicago,Cleveland, Boston and New York.
Have a great day!