Through the 2008 Games in Beijing, the United States has won at least 1 gold medal at every Summer Olympics and Winter Olympics.
Great Britain and Northern Ireland have had a gold medal in every modern Olympic games.
No South American country has ever won a winter Olympic medal.
India
Great Britain
China
yes
china
Bangladesh
Bangladesh
No athlete from the country of Samoa has won an Olympic medal. Samoa first participated in the 1984 Los Angeles Summer Olympic Games.
Every Athlete that won an event at the Olympic Games
That will be based on the country. The US Olympic committee pays an award bonus of $25,000 for a gold medal.