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 (brown belt). Later, when he travelled to Japan as Prime Minister, he was promoted to "sho-dan" (first-degree black belt) by the Kodokan, and then promoted to "ni-dan" (second-degree black belt) by Masao Takahashi in Ottawa before leaving office. Trudeau began the night of his famous 'walk in the snow' before announcing his retirement in 1984 by going to Judo with his sons. Other Canadian politicians and their families have also been associated with Judo. The children of Trudeau's successor in office, Brian Mulroney, also practised at the Takahashi Dojo, and Judo Canada has presented two honorary black belts to Members