Rank in Judo first five are colored black, 6th, 7th, and 8th "dan" have alternating red and white panels (dandara), and for 9th, 10th "dan" and above, the belts are solid red. In judo's promotion system as originally finalized by Kanō around 1926 there was no maximal dan rank, and judoka holding 10th dan would normally wear a red belt, but also could wear a white belt, the same color as the lowest kyū rank. However, since the highest dan rank reached in judo for a living person or conferred posthumously remains 10th dan, any judo dan rank higher than 10th dan is
Judo in the United States the U.S. development of judo is Yamashita Yoshitsugu, who came to the U.S. in 1902 in order to teach judo to the Japanese community. Yoshiaki ended up teaching Senator James Wolcott Wadsworth Jr.'s wife, who happened to attend the same country club as Theodore Roosevelt. Mrs. Wadsworth told Roosevelt about judo, and he became interested in the sport. Yoshiaki was subsequently invited to Washington to give a demonstration at the White House. There was a contest with a wrestler by the name of John Graft, who was the coach at the U.S. Naval Academy and who was teaching President Roosevelt