Athletes from Belarus began their Olympic participation at the 1952 Summer Games in Helsinki, Finland, as part of the Soviet Union. After the Soviet Union disbanded in 1991, Belarus, along with four of the other fourteen former Soviet republics, competed in the 1992 Winter Olympics as the Unified Team. Later in 1992, Belarus joined eleven republics to compete as the Unified Team at the Summer Games in Barcelona, Spain. Two years later, Belarus competed for the first time as an independent nation in the 1994 Winter Olympics, held in Lillehammer, Norway.
Sweden first participated at the Olympic Games at the inaugural 1896 Games, and has sent athletes to compete in every Games since then with one exception, the sparsely attended 1904 Summer Olympics. Sweden has earned medals at all Olympic games except for two, the 1896 Games and the 1904 Games. Sweden is the country with the longest Olympic Games medalling streak in history, having earned medals at every Olympic game since 1908.
The modern Olympic Games were founded by French historian Pierre de Coubertin. France has competed in every edition, with the possible exception of the 1904 Games.
Denmark first participated at the Olympic Games at the inaugural 1896 Games, and has sent athletes to compete in every Summer Olympic Games since then, except for the sparsely attended 1904 Games. Denmark has also participated in the Winter Olympic Games several times since 1948, including every Games since 1988.
Canada has competed at every Winter Olympic Games, and has won at least one medal each time. By total medals, the country's best performance was in the 2018 Winter Olympic Games where Canadian athletes won 29 medals. Canada set a new record for most gold medals won by a country in a single Winter Olympics with 14 at the 2010 Winter Olympics in Vancouver, Canada. This achievement surpassed the previous record of 13 gold medals held by the Soviet Union (1976) and Norway (2002). Both Germany and Norway matched the record total of 14 gold medals in Pyeongchang in 2018. This record has since been surpassed by Norway with 16 at the 2022 Winter Olympics.
Competitors at the Olympic Games have used banned athletic performance-enhancing drugs.
Athletics at the 2008 Summer Olympics were held during the last ten days of the games, from August 15 to August 24, 2008, at the Beijing National Stadium. The Olympic sport of athletics is split into four distinct sets of events: track and field events, road running events, and racewalking events.
Wrestling competitions at the 2008 Summer Olympics in Beijing, China, were held at the China Agricultural University Gymnasium from 12–21 August 2008. It was split into two disciplines, Freestyle and Greco-Roman which are further divided into different weight categories. Men competed in both disciplines whereas women only took part in the freestyle events with 18 gold medals being awarded. This was the second Olympics with women's wrestling as an event.
Originally having participated in Olympics as the delegation of the Republic of China (ROC) from 1924 Summer Olympics to 1976 Winter Olympics, China competed at the Olympic Games under the name of the People's Republic of China (PRC) for the first time at the 1952 Summer Olympics held in Helsinki, Finland, although they only arrived in time during the last days to participate in one event. That year, the International Olympic Committee (IOC) allowed both the PRC and ROC to compete with the name "China", although the latter withdrew in protest. Due to the dispute over the political status of the "two Chinas", the PRC started a period of isolationism, withdrawing from several international sporting bodies and the UN system until the mid-1970s, when the country participated for the first time in the Asian Games in 1974 and the World University Games in 1977. Returning to the IOC officially only in 1979, which gave it the right to send an official delegation, starting from the 1980 Winter Olympics in Lake Placid, United States. Their first appearance at the Summer Olympic Games after 1952 was the 1984 Summer Olympics in Los Angeles, United States. The People's Republic of China staged boycotts of the Games of the XVI Olympiad in Melbourne, Australia, Games of the XVII Olympiad in Rome, Italy, Games of the XVIII Olympiad in Tokyo, Japan, Games of the XIX Olympiad in Mexico City, Mexico, Games of the XX Olympiad in Munich, Germany, and Games of the XXI Olympiad in Montreal, Canada. China also boycotted the Games of the XXII Olympiad in Moscow, Soviet Union due to the American-led boycott and the ongoing Sino-Soviet split, together with the other countries.
Brazil sent a delegation to compete at the 2008 Summer Olympics in Beijing, China, in August 2008. Brazilian athletes have competed in every Summer Olympic Games since 1920, except the 1928 Summer Olympics. The country is represented by the Brazilian Olympic Committee. Brazil headed to the Beijing Games with its largest Olympic delegation at the time, 277 athletes, including 132 women.
Bahrain has competed in 10 Summer Olympic Games. They have never competed in the Winter Olympic Games.
The Russian Federation competed at the 2008 Summer Olympics, held in Beijing, China, represented by the Russian Olympic Committee. Russia competed in all sports except baseball, field hockey, football, softball, and taekwondo. They ranked third in the medal table by the number of gold (24) and overall (60) medals. Russia also had 14 medals stripped for doping violations, the most of any nation at the 2008 Olympics.
The 2008 Summer Olympics, officially known as the Games of the XXIX Olympiad, were a summer multi-sport event held in Beijing, the capital of the People's Republic of China, from 8 to 24 August 2008. Approximately 10,942 athletes from 204 National Olympic Committees (NOCs) participated in 302 events in 28 sports.
Ukraine competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's fifth consecutive appearance at the Summer Olympics in the post-Soviet era. The National Olympic Committee of Ukraine sent a total of 238 athletes, split equally between men and women, to compete in 21 sports.
The athletics competitions at the 2012 Olympic Games in London were held during the last 10 days of the Games, on 3–12 August. Track and field events took place at the Olympic Stadium in east London. The road events, however, started and finished on The Mall in central London.
Weightlifting competitions at the 2012 Summer Olympics in London were held from 28 July to 7 August in the ExCeL venue. Fifteen gold medals were awarded and 260 athletes took part.
The 2012 Summer Olympics, officially known as the Games of the XXX Olympiad, was a summer multi-sport event held in London, the capital of the United Kingdom, from 27 July to 12 August. A total of 10,768 athletes from 204 nations participated in 302 events in 26 sports across 39 different disciplines.
The 100 metres at the Summer Olympics has been contested since the first edition of the multi-sport event. The men's 100 metres has been present on the Olympic athletics programme since 1896. The 100 metres is considered one of the blue riband events of the Olympics and is among the highest profile competitions at the games. It is the most prestigious 100 metres race at an elite level and is the shortest sprinting competition at the Olympics – a position it has held at every edition except for a brief period between 1900 and 1904, when a men's 60 metres was contested.
The team event in figure skating at the 2022 Winter Olympics was held on 4, 6, and 7 February, at the Capital Indoor Stadium in Haidian District of Beijing.
