The only countries that have been to all Summer Olympics are Australia, Great Britain, France, Switzerland and Greece. Since the first Winter Olympics in 1924 only Switzerland, France and Great Britain have take part in each Winter Games. So three nations have competed at all Summer and Winter Olympics - Switzerland, France and Great Britain.
Australia is one of only 4 countries that have competed in every games of the modern Olympiad, so since 1896.
Except for the three that were cancelled due to World Wars, Australians have competed in every Olympic Games of the modern era since 1896.
Yes ... men have competed in shotput since the 1896 Summer Games in Athens and women since the 1948 Summer Games in London.
Long jump has been an Olympic event since the Modern Olympics began in 1896. Men have competed in Olympic long jump since 1896. Women have competed in Olympic long jump since 1948.
Cycling has been competed since the first Modern Olympic Games in 1896 in Athens.
Spain has competed in 17 Winter Olympic Games (all since 1936) and in 21 Summer Olympic Games (all except 1896, 1904, 1908, 1912, and 1936).
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America first competed in the Modern Olympics at the 1896 Games in Athens.
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There were no female competitors at the 1896 Games in Athens. The first Games that women competed in was the 1900 Games in Paris.
Cycling has been competed at the Olympics since the first Modern Olympics in Athens in 1896.
Hungary first competed at the first Modern Olympics, the 1896 Games in Athens. Hungary has competed in all Olympic Games, Winter and Summer, except for the 1920 Summer Games and the 1984 Summer Games.