21. Pearl diver using a car’s old gas tank for a helmet, prepares to descend into the river, 1938.
The photo was taken near the Mississippi River.
22. The first-ever photo of the first plutonium ever produced, Fritz Goro, 1946.
23. George H.W. Bush, a life-long baseball fan, takes Queen Elizabeth and Prince Phillip to a Baltimore Orioles vs. Oakland Athletics game in 1991.
The first time the Queen had been to a baseball game.