At the 1906 Summer Olympics in Athens, 21 competitive events in athletics were held. A total of 65 medals (21 gold, 23 silver, 21 bronze) were awarded. Now called the Intercalated Games, the 1906 Games are no longer considered as an official Olympic Games by the International Olympic Committee (IOC).
References
Athletics at the 1906 Intercalated Games Wikipedia(Text) CC BY-SA