Iran competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. The nation has competed at every Summer Olympic games, since its official debut in 1948 with the exception of the 1980 and 1984 Summer Olympics. The National Olympic Committee of the Islamic Republic of Iran sent a total of 38 athletes, 37 men and 1 woman, to compete in 10 sports. Half-lightweight judoka Arash Miresmaeili, who later forfeited his first match against Israel's Ehud Vaks for medical reasons, was the nation's flag bearer in the opening ceremony.
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.
Mongolia competed at the 1980 Summer Olympics in Moscow, USSR. 43 competitors, 39 men and 4 women, took part in 41 events in 8 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.
The freestyle lightweight was one of five freestyle wrestling weight classes contested on the Wrestling at the 1908 Summer Olympics programme. Like all other wrestling events, it was open only to men. The lightweight was the median weight class, allowing wrestlers of up to 66.6 kilograms (147 lb).
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.
North Yemen competed as the Yemen Arab Republic at the 1988 Summer Olympics in Seoul, Korea. After unification with South Yemen, the nation would return as Yemen at the 1992 Summer Olympics.
Mongolia competed at the 1968 Summer Olympics in Mexico City, Mexico. 16 competitors, 12 men and 4 women, took part in 26 events in 4 sports.
The lightweight was the third heaviest freestyle wrestling weight class held as part of the Wrestling at the 1904 Summer Olympics programme. It was the first time the event, like all other freestyle wrestling events, was held in Olympic competition. 10 wrestlers competed.
The men's freestyle lightweight 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. Lightweight was the second-lightest category, and included wrestlers weighing up to 61 kilograms.
The men's freestyle lightweight was a freestyle wrestling event held as part of the Wrestling at the 1924 Summer Olympics programme. It was the fourth appearance of the event. Lightweight was the third-lightest category, including wrestlers weighing from 61 to 66 kilograms.
The men's freestyle bantamweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the fourth appearance of the event. Bantamweight was the lightest category, including wrestlers weighing up to 56 kilograms. Kaarlo Mäkinen, the silver medalist at the previous Games, won the event.
The men's freestyle featherweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the fifth appearance of the event. Featherweight was the second-lightest category, including wrestlers weighing up to 61 kilograms. Kustaa Pihlajamäki, who had won gold in the lighter bantamweight class in 1924, took silver.
The men's freestyle welterweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the third appearance of the event. Welterweight was the median category, including wrestlers weighing up to 72 kilograms. Arvo Haavisto, a 1924 bronze medalist in the lightweight category, won the tournament.
The men's freestyle middleweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the fourth appearance of the event. Middleweight was the third-heaviest category, including wrestlers weighing up to 79 kilograms.
The men's freestyle light heavyweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the third appearance of the event. Light heavyweight was the second-heaviest category, including wrestlers weighing up to 87 kilograms.
The men's freestyle heavyweight was a freestyle wrestling event held as part of the Wrestling at the 1928 Summer Olympics programme. It was the fifth appearance of the event. Heavyweight was the heaviest category, including wrestlers weighing over 87 kilograms.
Guinea-Bissau competed at the 2016 Summer Olympics in Rio de Janeiro, from August 5 to 21, 2016. This was the nation's sixth consecutive appearance at the Summer Olympics.
The men's freestyle lightweight competition at the 1932 Summer Olympics in Los Angeles took place from 1 August to 3 August at the Grand Olympic Auditorium. Nations were limited to one competitor. This weight class was limited to wrestlers weighing up to 66kg.
The men's freestyle lightweight competition at the 1936 Summer Olympics in Berlin took place from 2 August to 4 August at the Deutschlandhalle. Nations were limited to one competitor. This weight class was limited to wrestlers weighing up to 66kg.
