1968 Olympic Games, Mexico City, Mexico, Swimming, Women's 400 Metres Freestyle, USA's Debbie Meyer breaks the Olympic recoed in the heat (Photo by Popperfoto via Getty Images/Getty Images)
1968 Olympic Games, Mexico City, Mexico, Swimming, Women's 400 Metres Freestyle, USA's Debbie Meyer breaks the Olympic recoed in the heat (Photo by Popperfoto via Getty Images/Getty Images)