1996 Atlanta Olympics Centennial Commemorative Set of 24 Official Poster Postcards This set of postcards was specially issued to commemorate the 100th anniversary of the birth of the modern Olympic Games. From the first Olympic Games in Athens in 1896 to the 1996 Atlanta Olympics, it completely includes classic official posters from all the Summer Olympic Games. It is a collectible postal item that encapsulates a century of Olympic history.