The 8th Olympic Games were held in Paris in 1924. For the first time, the organizers concentrated their participants in purpose-built wooden houses. This was the earliest Olympic lining. Since the Los Angeles Olympics in 1932, Olympic villages have been provided for participants from all countries. It became a tradition. From the first modern Olympics to the end of the 20th century, the United States was the country hosting the most modern Olympics, including the 4 Summer Olympics and 3 Winter Olympics. The two world wars of the 20th century made the original plan in 1916. In 1940, the 6th, 12th and 13th Olympic Games held in 1944 were forced to be canceled. According to the old system of the ancient Olympic Games, any Olympic Games that could not be held due to some reason also ranked in the history of sports. What is the exact summary of this passage? ['Olympic Village.', 'Olympics.', 'Forced to cancel the Olympics.', 'Countries hosting the most modern Olympics.']