The men's Greco-Roman 55 kilograms at the 2004 Summer Olympics as part of the wrestling program were held at the Ano Liosia Olympic Hall, August 24 to August 25. The competition held with an elimination system of three or four wrestlers in each pool, with the winners qualify for the quarterfinals, semifinals and final by way of direct elimination.
Poland competed at the 1980 Summer Olympics in Moscow, USSR. 306 competitors, 232 men and 74 women, took part in 162 events in 21 sports.
Poland competed at the 1996 Summer Olympics in Atlanta, United States. 165 competitors, 126 men and 39 women, took part in 126 events in 20 sports.
Bulgaria competed at the 1972 Summer Olympics in Munich, West Germany. 130 competitors, 106 men and 24 women, took part in 92 events in 15 sports.
Bulgaria competed at the 1964 Summer Olympics in Tokyo, Japan. 63 competitors, 56 men and 7 women, took part in 56 events in 9 sports.
Bulgaria competed at the 1960 Summer Olympics in Rome, Italy. 98 competitors, 89 men and 9 women, took part in 66 events in 12 sports.
At the 1920 Summer Olympics, ten wrestling events were contested, for all men. There were five weight classes in Greco-Roman wrestling and five classes in Catch as Catch Can, predecessor to freestyle wrestling. The competitions were held from Monday, August 16 to Friday, August 20, 1920 (Greco-Roman) and from Wednesday, August 25 to Friday, August 27, 1920 (freestyle).
Finland competed at the 1920 Summer Olympics in Antwerp, Belgium for the first time as a fully independent state. It did compete at the previous Olympics, however, only as the Russian-dependent Grand Duchy of Finland. 63 competitors, 62 men and 1 woman, took part in 51 events in 9 sports.
Finland competed at the 1956 Summer Olympics in Melbourne, Australia and Stockholm, Sweden. 64 competitors, 63 men and 1 woman, took part in 62 events in 14 sports.
Estonia first competed as a nation at the 1920 Summer Olympics, two years after the country declared independence from the then warring Russian and German Empires in 1918. The Estonian National Olympic Committee was established in 1923. The first Winter Olympics for independent Estonia were the 1928 Winter Olympics. Estonian athletes took part in the Olympic Games until the country was invaded and occupied by the Soviet Union in 1940. The 1980 Summer Olympics sailing regatta was held in Tallinn, Soviet-occupied Estonia. Since the end of the Soviet occupation in 1991, Estonia has participated in all Olympics. Estonia has won most of its medals in wrestling (11), weightlifting (7), cross-country skiing (7) and athletics (6).
The men's Greco-Roman 62 kilograms at the 1996 Summer Olympics as part of the wrestling program were held at the Georgia World Congress Center from July 22 to July 23. The gold and silver medalists were determined by the final match of the main single-elimination bracket. The losers advanced to the repechage. These matches determined the bronze medalist for the event.
The men's Greco-Roman lightweight was a Greco-Roman wrestling event held as part of the Wrestling at the 1920 Summer Olympics programme. It was the third appearance of the event. Featherweight was the second lightest category, and included wrestlers weighing up to 67.5 kilograms.
The men's Greco-Roman middleweight was a Greco-Roman wrestling event held as part of the Wrestling at the 1920 Summer Olympics programme. It was the third appearance of the event. Middleweight was the median category, including wrestlers weighing up to 75 kilograms.
The men's Greco-Roman light heavyweight was a Greco-Roman wrestling event held as part of the Wrestling at the 1920 Summer Olympics programme. It was the third appearance of the event. Light heavyweight was the second heaviest category, including wrestlers weighing up to 82.5 kilograms.
The men's Greco-Roman heavyweight was a Greco-Roman wrestling event held as part of the Wrestling at the 1920 Summer Olympics programme. It was the third appearance of the event. Heavyweight was the heaviest category, including wrestlers weighing over 82.5 kilograms.
The men's freestyle featherweight was a Catch as Catch Can wrestling, later freestyle, event held as part of the wrestling at the 1920 Summer Olympics programme. It was the third appearance of the event. Featherweight was the lightest category, and included wrestlers weighing up to 54 kilograms.
The men's Greco-Roman featherweight was a Greco-Roman wrestling event held as part of the Wrestling at the 1924 Summer Olympics programme. It was the third appearance of the event. Featherweight was the second-lightest category, including wrestlers weighing 58 to 62 kilograms.
The men's Greco-Roman featherweight was one of thirteen wrestling events held as part of the wrestling at the 1928 Summer Olympics programme. The competition was held from August 2 to 5, and featured 20 wrestlers from 20 nations.
The men's Greco-Roman featherweight competition at the 1948 Summer Olympics in London took place from 3 August to 6 August at the Empress Hall, Earls Court Exhibition Centre. Nations were limited to one competitor.
The men's Greco-Roman featherweight competition at the 1964 Summer Olympics in Tokyo took place from 16 to 19 October at the Komazawa Gymnasium. Nations were limited to one competitor.
