At the first Olympic Games in 1896 there were nine sports contested: Artistic Gymnastics, Athletics, Cycling (Road & Track), Fencing, Shooting, Swimming, Tennis, Weightlifting, Greco-Roman Wrestling.
Since that time many sports have been added (and some removed too) from the program. The sport count total from different sources do not always correspond, as some disciplines are sometimes counted as separate sports, such as swimming, diving, water polo being counted as aquatics, road and track cycling as just cycling.
|Olympiad||Year||Host City, Country||no. of sports|
|XXXIV||2028||Los Angeles, USA||36?|
|XXIV||1988||Seoul, South Korea||23|
|XXIII||1984||Los Angeles, USA||21|
|XIX||1968||Mexico City, Mexico||18|
|XIV||1948||London, Great Britain||17|
|X||1932||Los Angeles, USA||14|
|IV||1908||London, Great Britain||22|
|III||1904||St Louis, USA||16|
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