Explanation: Marjorie Gestring of the United States is the youngest athlete to ever win an Olympic gold medal; she was 13 years old when she won in springboard diving in 1936.

Explanation: Abhinav Bindra made history by becoming the first Indian to win an individual gold medal at the Olympics. He achieved this milestone at the 2008 Beijing Olympics in the men's 10m Air Rifle shooting event.

Explanation: Yemen has participated in six Summer Olympics (from 1984 to 2020) but has not won any medals.

Explanation: Aladár Gerevich, the Hungarian fencer, holds the record for the most Olympic gold medals in the sport of fencing, with seven gold medals in team sabre events.

Explanation: Edwin Moses set the world record for the most consecutive Olympic victories in a single athletics event, the 400m hurdles, with two gold medals in 1976 and 1984.

Explanation: India holds the record for the most consecutive gold medals in men's hockey at the Summer Olympics, with six consecutive wins from 1928 to 1956.

Explanation: Mark Spitz set the record for the longest-standing world record in swimming at the Olympics in the 200m freestyle, which stood for 36 years.

Explanation: Aleksandr Karelin, the Russian wrestler, has won the most Olympic medals in the sport of wrestling.

Explanation: Simone Biles holds the record for the most Olympic gold medals won by an individual in gymnastics.

Explanation: The United States has won the most medals in the history of the Summer Olympics.

Explanation: Serena Williams, the tennis player, holds the record for the most consecutive Olympic gold medals in a team sport, along with her sister Venus Williams.

Explanation: Merlene Ottey, the Jamaican sprinter, has won the most Olympic medals without ever winning a gold medal.

Explanation: Usain Bolt has won 8 gold medals in Olympics.

Explanation: Athens has hosted the Summer Olympics twice, in 1896 and 2004.

Explanation: Michael Phelps, the American swimmer, has won a record 23 Olympic gold medals in swimming events.

Explanation: Norway has won the most gold medals in the history of the Winter Olympics.

Explanation: Ian Millar, the Canadian equestrian, holds the record for the most consecutive Olympic appearances by a single athlete, with 10 appearances.

Explanation: Bob Beamon set an Olympic record in the long jump at the 1968 Mexico City Olympics that stood for almost 23 years.

Explanation: Larisa Latynina, the Soviet gymnast, has the highest total medal count in the history of the Summer Olympics.

Explanation: Michael Phelps won eight gold medals in the 2008 Beijing Olympics, setting the record for the most gold medals in a single Olympic Games.

Explanation: Michael Phelps holds the all-time record for the most Olympic gold medals won by a single athlete. He won 8 golds in swimming in 2008 Beijing Olympics

Explanation: Hungary and Great Britain hold the record for the most Olympic gold medals in men's soccer, each with three golds

Explanation: Michael Phelps holds the record for the most consecutive Olympic gold medals in the same event, specifically in the 200m individual medley.

Explanation: Ole Einar Bjørndalen, the Norwegian biathlete, has the highest total medal count in the history of the Winter Olympics.

Explanation: Simone Biles, the American gymnast, holds the record for being the most decorated female gymnast in Olympic history.

Explanation: Usain Bolt of Jamaica set the world record for the 100m sprint in the 2008 Beijing Olympics.

Explanation: Norway holds the record for the most medals overall in the Winter Olympics.