London 2012 Olympics start dates:

London 2012 Olympic events and venues

During the first several modern Olympics, the marathon was always an approximate distance. In 1908, the British royal family requested that the marathon start at the Windsor Castle so that the royal children could witness its start. The distance from the Windsor Castle to the Olympic Stadium was 42,195 meters (or 26 miles and 385 yards). In 1924, this distance became the standardized length of a marathon.

Women were first allowed to participate in 1900 at the second modern Olympic Games.

The winter Olympic Games were first held in 1924, beginning a tradition of holding them a few months earlier and in a different city than the summer Olympic Games. Beginning in 1994, the winter Olympic Games were held in completely different years (two years apart) than the summer Games.

Because of World War I and World War II, there were no Olympic Games in 1916, 1940, or 1944.

Tennis was played at the Olympics until 1924, then reinstituted in 1988.

In 1960, the Winter Olympic Games were held in Squaw Valley, California (United States). In order to bedazzle and impress the spectators, Walt Disney was head of the committee that organized the opening day ceremonies. The 1960 Winter Games Opening Ceremony was filled with high school choirs and bands, releasing of thousands of balloons, fireworks, ice statues, releasing of 2,000 white doves, and national flags dropped by parachute.

Though Russia had sent a few athletes to compete in the 1908 and 1912 Olympic Games, they did not compete again until the 1952 Games.

Motor boating was an official sport at the 1908 Olympics.

Polo was played at the Olympics in 1900, 1908, 1920, 1924, and 1936.

The word "gymnasium" comes from the Greek root "gymnos" meaning nude; the literal meaning of "gymnasium" is "school for naked exercise." Athletes in the ancient Olympic Games would participate in the nude.

The first recorded ancient Olympic Games were held in 776 BCE with only one event - the stade. The stade was a unit of measurement (about 600 feet) that also became the name of the footrace because it was the distance run. Since the track for the stade (race) was a stade (length), the location of the race became the stadium.

An Olympiad is a period of four successive years. The Olympic Games celebrate each Olympiad. For the modern Olympic Games, the first Olympiad celebration was in 1896. Every four years celebrates another Olympiad; thus, even the Games that were cancelled (1916, 1940, and 1944) count as Olympiads. The 2004 Olympic Games in Athens was called the Games of the XXVIII Olympiad.

Created by Pierre de Coubertin in 1914, the Olympic flag contains five interconnected rings on a white background. The five rings symbolize the five significant continents and are interconnected to symbolize the friendship to be gained from these international competitions. The rings, from left to right, are blue, yellow, black, green, and red. The colors were chosen because at least one of them appeared on the flag of every country in the world. The Olympic flag was first flown during the 1920 Olympic Games.

In 1921, Pierre de Coubertin, founder of the modern Olympic Games, borrowed a Latin phrase from his friend, Father Henri Didon, for the Olympic motto: Citius, Altius, Fortius ("Swifter, Higher, Stronger").

Pierre de Coubertin wrote an oath for the athletes to recite at each Olympic Games. During the opening ceremonies, one athlete recites the oath on behalf of all the athletes. The Olympic oath was first taken during the 1920 Olympic Games by Belgian fencer Victor Boin. The Olympic Oath states, "In the name of all competitors, I promise that we shall take part in these Olympic Games, respecting and abiding by the rules that govern them, in the true spirit of sportsmanship, for the glory of sport and the honor of our teams."

Pierre de Coubertin got the idea for this phrase from a speech given by Bishop Ethelbert Talbot at a service for Olympic champions during the 1908 Olympic Games. The Olympic Creed reads: "The most important thing in the Olympic Games is not to win but to take part, just as the most important thing in life is not the triumph but the struggle. The essential thing is not to have conquered but to have fought well."

The Olympic flame is a practice continued from the ancient Olympic Games. In Olympia (Greece), a flame was ignited by the sun and then kept burning until the closing of the Olympic Games. The flame first appeared in the modern Olympics at the 1928 Olympic Games in Amsterdam. The flame itself represents a number of things, including purity and the endeavor for perfection. In 1936, the chairman of the organizing committee for the 1936 Olympic Games, Carl Diem, suggested what is now the modern Olympic Torch relay.

The Olympic flame is lit at the ancient site of Olympia by women wearing ancient-style robes and using a curved mirror and the sun. The Olympic Torch is then passed from runner to runner from the ancient site of Olympia to the Olympic stadium in the hosting city. The flame is then kept alight until the Games have concluded. The Olympic Torch relay represents a continuation from the ancient Olympic Games to the modern Olympics.

The Olympic Hymn, played when the Olympic Flag is raised, was composed by Spyros Samaras and the words added by Kostis Palamas. The Olympic Hymn was first played at the 1896 Olympic Games in Athens but wasn't declared the official hymn by the IOC until 1957.

The last Olympic gold medals that were made entirely out of gold were awarded in 1912.

The Olympic medals are designed especially for each individual Olympic Games by the host city's organizing committee. Each medal must be at least three millimeters thick and 60 millimeters in diameter. Also, the gold and silver Olympic medals must be made out of 92.5 percent silver, with the gold medal covered in six grams of gold.

The first opening ceremonies were held during the 1908 Olympic Games in London.

During the opening ceremony of the Olympic Games, the procession of athletes is always led by the Greek team, followed by all the other teams in alphabetical order (in the language of the hosting country), except for the last team which is always the team of the hosting country.

When choosing locations for the Olympic Games, the IOC specifically gives the honor of holding the Games to a city rather than a country.

In order to make the IOC an independent organization, the members of the IOC are not considered diplomats from their countries to the IOC, but rather are diplomats from the IOC to their respective countries.

James B. Connolly (United States), winner of the hop, step, and jump (the first final event in the 1896 Olympics), was the first Olympic champion of the modern Olympic Games.

In 490 BCE, Pheidippides, a Greek soldier, ran from Marathon to Athens (about 25 miles) to inform the Athenians the outcome of the battle with invading Persians. The distance was filled with hills and other obstacles; thus Pheidippides arrived in Athens exhausted and with bleeding feet. After telling the townspeople of the Greeks' success in the battle, Pheidippides fell to the ground dead. In 1896, at the first modern Olympic Games, held a race of approximately the same length in commemoration of Pheidippides.