paragraph_text: Josef Sucharda (18 April 1883 – 19 January 1963) was a Czech sports shooter. He competed at the 1920 Summer Olympics and the 1924 Summer Olympics.

paragraph_text: The first organized meeting of the sport took place in 1883 in Switzerland. In 1913, the Internationale Schlittensportverband or International Sled Sports Federation was founded in Dresden, Germany. This body governed the sport until 1935, when it was incorporated in the Fédération Internationale de Bobsleigh et de Tobogganing (FIBT, International Bobsleigh and Tobogganing Federation). After it had been decided that luge would replace the sport of skeleton at the Olympic Games, the first World Championships in the sport were held in 1955 in Oslo (Norway). In 1957, the Fédération Internationale de Luge de Course (FIL, International Luge Federation) was founded. Luge events were first included in the Olympic Winter Games in 1964.

paragraph_text: Figure skating was first contested in the Olympic Games at the 1908 Summer Olympics. Since 1924, the sport has been a part of the Winter Olympic Games.

paragraph_text: Harihar Banerjee (born 1 March 1918, date of death unknown) was an Indian sports shooter. He competed at the 1952 Summer Olympics and 1956 Summer Olympics.

paragraph_text: Harry Crowe Buck (November 25, 1884 -- July 24, 1943) was an American college sports coach and physical education instructor. He founded the YMCA College of Physical Education at Madras in 1920, which played a key role in promoting sports and in establishing the Olympic movement in India. He has been called ``The Father of Physical Education in India ''. He was also one of the founding members of the Olympic movement in India and the Indian Olympic Association, and was manager of the Indian team at the 1924 Olympics.

paragraph_text: Tennis was part of the Summer Olympic Games program from the inaugural 1896 Summer Olympics, but was dropped after the 1924 Summer Olympics due to disputes between the International Lawn Tennis Federation and the International Olympic Committee over how to define amateur players. After two appearances as a demonstration sport in 1968 and 1984 (with a U-21 age limit), it returned as a full medal sport at the 1988 Summer Olympics open for all players regardless of their age and status and has been played at every edition of the Games since then.

paragraph_text: The game developed in British India from the earlier game of battledore and shuttlecock. European play came to be dominated by Denmark but the game has become very popular in Asia, with recent competitions dominated by China. Since 1992, badminton has been a Summer Olympic sport with four events: men's singles, women's singles, men's doubles, and women's doubles, with mixed doubles added four years later. At high levels of play, the sport demands excellent fitness: players require aerobic stamina, agility, strength, speed, and precision. It is also a technical sport, requiring good motor coordination and the development of sophisticated racquet movements.

paragraph_text: The modern Olympic Games or Olympics (French: Jeux olympiques) are leading international sporting events featuring summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competitions. The Olympic Games are considered the world's foremost sports competition with more than 200 nations participating. The Olympic Games are held every four years, with the Summer and Winter Games alternating by occurring every four years but two years apart.

paragraph_text: A wide range of sports were already established by the time of Ancient Greece and the military culture and the development of sport in Greece influenced one another considerably. Sport became such a prominent part of their culture that the Greeks created the Olympic Games, which in ancient times were held every four years in a small village in the Peloponnesus called Olympia.Sports have been increasingly organised and regulated from the time of the ancient Olympics up to the present century. Industrialisation has brought increased leisure time, letting people attend and follow spectator sports and participate in athletic activities. These trends continued with the advent of mass media and global communication. Professionalism became prevalent, further adding to the increase in sport's popularity, as sports fans followed the exploits of professional athletes – all while enjoying the exercise and competition associated with amateur participation in sports. Since the turn of the 21st century, there has been increasing debate about whether transgender sportspersons should be able to participate in sport events that conform with their post-transition gender identity.

paragraph_text: In 2005, in order to host The 10th National Game of People's Republic of China, there was a new stadium, Nanjing Olympic Sports Center, constructed in Nanjing. Compared to Wutaishan Sports Center, which the major stadium's capacity is 18,500, Nanjing Olympic Sports Center has a more advanced stadium which is big enough to seat 60,000 spectators. Its gymnasium has capacity of 13,000, and natatorium of capacity 3,000.

paragraph_text: Skeleton is a winter sport featured in the Winter Olympics where the competitor rides head - first and prone (lying face down) on a flat sled. It is normally run on an ice track that allows the sled to gain speed by gravity. It was first contested at the 1928 Winter Olympics in St. Moritz and again in 1948 Winter Olympics, after which it was discontinued as an Olympic sport. Skeleton was reintroduced at the 2002 Winter Olympics, with both men's and women's events, and has been held in each Winter Olympic competition since. Skeleton is so - named as the first metal sleds introduced in 1892 were said to resemble a human skeleton.

paragraph_text: Yury Nikandrov (22 November 1923 – 21 December 2018) was a Russian sport shooter who competed in the 1952 Summer Olympics, in the 1956 Summer Olympics, and in the 1960 Summer Olympics.

paragraph_text: Kabaddi Kabaddi game Highest governing body International Kabaddi Federation Nicknames Kaudi, Pakaada, Hadudu, Bhavatik, Saadukuda, Hu - Tu - Tu, Himoshika, sadugudu Characteristics Contact Permitted Team members 7 (per side) Mixed gender Yes, separate competitions Type Team sport, Contact sport Equipment None Venue Kabaddi court Presence Country or region Indian Subcontinent tamilnadu Olympic Demonstration sport: 1936 Olympics

paragraph_text: The Nanjing Olympic Sports Center Gymnasium (Simplified Chinese: 南京奥林匹克体育中心体育馆) is an indoor arena in Nanjing, China. The arena used mainly for indoor sports such as basketball and figure skating. The facility has a capacity of 13,000 people and was opened in 2005. It is located near Nanjing Olympic Sports Centre.

paragraph_text: Kila Raipur Sports Festival, popularly known as the Rural Olympics, is held annually in Kila Raipur (near Ludhiana), in Punjab, India. Competitions are held for major Punjabi rural sports, include cart-race, athletic events and rope pulling.

paragraph_text: Oliver "Ollie" Martin Schriver (December 17, 1879 – June 28, 1947) was an American Gunnery Sergeant, sports shooter and Olympic Champion.

paragraph_text: There are two major sports centers in Nanjing, Wutaishan Sports Center and Nanjing Olympic Sports Center. Both of these two are comprehensive sports centers, including stadium, gymnasium, natatorium, tennis court, etc. Wutaishan Sports Center was established in 1952 and it was one of the oldest and most advanced stadiums in early time of People's Republic of China.

paragraph_text: Basque Pelota was a demonstration sport at the 1924 Summer Olympics in Paris. It was the second time that the sport was included in the Olympic program; it was an official Olympic sport at the 1900 Games that were also held in Paris. It would be included as a demonstration in another two occasions at the 1968 Games in Mexico City and the 1992 Games in Barcelona.

paragraph_text: Martin Rettl (born 25 November 1973) is an Austrian skeleton racer who competed from 1989 to 2006. Competing in two Winter Olympics, he won a silver medal in the men's skeleton event at Salt Lake City in 2002.

paragraph_text: The history of Olympic volleyball can be traced back to the 1924 Summer Olympics in Paris, where volleyball was played as part of an American sports demonstration event. Its addition to the Olympic program, however, was given only after World War II, with the foundation of the FIVB and of some of the continental confederations. In 1957, a special tournament was held during the 53rd IOC session in Sofia, Bulgaria, to support such request. The competition was a success, and the sport was officially introduced in 1964. The Olympic Committee initially dropped volleyball for the 1968 Olympics, meeting protests.

Question: When did the sport which Martin Rettl competes in become an Olympic sport?
Answer: 1928