<P> This is a list of nations, as represented by National Olympic Committees (NOCs), that have participated in the Summer Olympic Games between 1896 and 2016 . As of the 2016 Games, all of the current 206 NOCs have participated in at least one edition of the Olympic Games, and athletes from Australia (including two Games featuring the Australasia team), France, Great Britain, Greece and Switzerland have competed in all twenty - eight Summer Olympic Games . </P> <P> Early Games were not clearly documented with respect to participating nations . Competitors from 11 to 16 different nations participated in the inaugural 1896 Games, in Athens . Eleven nations (Australia, Austria, Denmark, England, France, Germany, Greece, Hungary, Sweden, Switzerland, and the United States) are mentioned in the official report for the Games, and the International Olympic Committee (IOC) states that 14 nations were represented . The NOCs for Bulgaria and Chile each claim that they were represented by a single athlete in Athens . Other sources also list Egypt, Italy, and the Turkish Empire . </P> <P> While official report was actually the summary of the sporting events held at the 1900 Exposition Universelle and so cannot be considered as reliable source, the IOC states that 24 nations participated in the 1900 Summer Olympics in Paris, but additional sources list up to 28 nations, with Haiti, Iran, Luxembourg, and Peru being the additions . The 1904 Games, held in St. Louis, were poorly organized, with participation of only 12 nations, and many events contested only by athletes from the host United States . Although the Intercalated Games of 1906 are no longer considered official Games of the Olympiad by the IOC, they helped restore the Olympic movement . Participation at subsequent Games grew steadily, with 22 nations in London for 1908 and 28 nations in Stockholm for the 1912 Games . At these two Games (only), one of the delegations was actually a combined team of athletes from Australia and New Zealand, designated Australasia . The Games of 1916, planned for Berlin, were cancelled due to World War I . </P>

Which countries took part in the first modern olympic games
find me the text answering this question