21. Dan Edwards and Peter Samson developing the game “Spacewar!” at MIT in 1962.
22. President Bill Clinton misses the ball while playing touch football on the beach at the Hyatt Regency Hotel in Hilton Head Island, South Carolina, 31 December 1993.
23. Dr. Jonas Salk injects Pittsburg area students with his new Polio Vaccine, 23 Feb. 1954.
Dr. Salk personally administered all 137 injections.