Sports in North America Canadian Confederation in 1867. As for the United States, it became the center of professional boxing in the early 20th century. The major world sanctioning bodies in boxing are based in North America: the International Boxing Federation (Springfield, New Jersey), the World Boxing Association (Panama City), the World Boxing Council (Mexico City), and the World Boxing Organization (San Juan, Puerto Rico). A few North American countries hold their own Triple Crown of Thoroughbred Racing series. The Triple Crown in the United States consists of the Kentucky Derby, the Preakness Stakes, and the Belmont Stakes. The Canadian Triple Crown has the
Largest cities in Japan by population by decade cities proper. Source data is from the 2000 Census. In the mid-2000s, another series of municipal mergers was enacted. The "Great Heisei Mergers" nearly halved the number of municipalities in Japan, once again increasing the size of some cities significantly and creating new towns and cities. Despite a mounting population loss in rural areas and some smaller cities, Japan's major cities continue to grow. Source date is from the 2010 Census. Largest cities in Japan by population by decade This article lists the ten most populous cities in Japan by decade, starting after the Meiji Restoration of 1868. The first