![Dr. Robert Christison.](/sites/default/files/styles/large/public/Sir_Robert_Christison2.jpg?itok=-ThiJERc)
Dr. Robert Christison
![Japanese swimmers at the 1932 Los Angeles Olympic Games.](/sites/default/files/styles/large/public/Kentaro_Kawatsu%2C_Toshio_Irie_and_Masaji_Kiyokawa_1932.jpg?itok=WQnwtCDs)
Japanese swimmers at the 1932 Los Angeles Olympic Games
![IOC President Henri de Baillet-Latour in 1936.](/sites/default/files/styles/large/public/Henri_de_Baillet-Latour.jpg?itok=qMIieONr)
Henri de Baillet-Latour
![Paul de Kruif’s 1945 publication 'The Male Hormone.'](/sites/default/files/styles/large/public/Male%20Hormone%2C%20deKruif%2C%201945%20%28cover%29.jpg?itok=2a45jdXR)
Paul de Kruif’s 1945 publication “The Male Hormone”
![Knud Enemark Jensen.](/sites/default/files/styles/large/public/knudjensen.jpg?itok=DWMIN60V)
Knud Enemark Jensen
1969 Sports Illustrated cover
![Poster from the 1983 Pan American Games.](/sites/default/files/styles/large/public/Pan_am_1983.jpg?itok=VMURjzH1)
Poster from the 1983 Pan American Games
![Bicyclists 'sit down' in protest.](/sites/default/files/styles/large/public/pantanistage12.jpg?itok=tjcuAyE6)
Bicyclists “sit down” in protest during the 1998 Tour de France