The year 1634 is given as the date at which the custom of the Daimios visiting Yedo on alternate years commenced. The Daimios coming to Yedo and returning from it are spoken of as Sankin and Kotai. The custom seems to have been long in use in Miako, but in a more temporary way, and simply as being a duty of each lord to visit and pay his respects at the imperial court once a year when they offered presents. This visit was by Iyeyas transferred to his court at Yedo and Soonpu; but it appears to have fallen into desuetude and irregularity during the life of Hidetada. But Iyaymitz, who was an able, proud, and precise ruler, found that his father had not been much respected by the Daimios, who still retained the recollection of the wars and prowess of Iyeyas; but in course of time these men were succeeded by their sons, who were of a more effeminate spirit, and had no such associations. Iyaymitz, taking advantage of this change, invited all the Daimios to visit him at Yedo, when he proposed rules for their visiting and residing at his court, to which they all agreed, swearing fealty, and signing the deed each with his own blood drawn from above the nail of the finger. A hall had been built on the Goteng yama, a rising-ground near Yedo, in which the Shiogoon was to meet the Daimios on their arrival; but under Iyaymitz the custom was discontinued and the ground made public. During the same year, the “Court of Deliberation,” the Hio jo sho, was established in Yedo, with the view at the outset of investigating charges brought against Daimios. The Mayassu hako, or box for complaints, now standing in front of the Hio jo sho, was not placed there till the year 1721.