Rank in Judo English language edition (1955) of "Illustrated Kodokan Judo", edited by the Kōdōkan, says: This statement was later clarified, however. Essentially, the dan-rank system was capped at 10 after the death of Kanō. In that respect, in the November 1963 issue of "Jūdō", the Kōdōkan's official magazine, the Kōdōkan responding to the question "Do the 11th and 12th Dan really exist?" clarifies that the hierarchy now stops at 10 and that the Kōdōkan does not envisage any nominations to these grades. There have only been fifteen 10th dan promotions awarded by the Kōdōkan in the history of Judo. Although "dan" ranks
Judo in Canada 'forms of throwing') must be demonstrated during examinations beginning at "sankyū" (green belt). Finally, students are also expected to remain proficient in all techniques associated with their previous grades, and to develop an understanding of Judo's history and standard Japanese terms. The requirements for "dan" promotion are more demanding and cover age, time in current grade, points total, and how those points were earned. To test for black belt, a person must be at least 15 years old, have been an "ikkyū" (brown belt) for at least one year, been active in Judo for at least three years with a