On what date did the massacre in which the Piegan warrior known as "kyaiyotokan" survived occur?
Bearhead Mountain (Montana) Bearhead Mountain (8406 ft ) is located in the Lewis Range, Glacier National Park in the U.S. state of Montana. The mountain is named for "kyáiyótokan", a Piegan warrior known for his war against the dreaded Assiniboine "White Dog". "kyáiyótokan" was also a survivor of the Marias Massacre and the brother of "Chief Heavy Runner" a confidant of Glacier author James Willard Schultz.
Date Tsunamune Date Tsunamune (伊達 綱宗 , September 23, 1640 – July 19, 1711) was the "daimyō" (lord) of Sendai Domain for about two years, from 1658 to 1660. His father, Date Tadamune, died in 1658, but Tsunamune's succession and rule was soon opposed by a number of his kinsmen and vassals. This dispute eventually led to the "Date Sōdō" or "Date Disturbance" of 1671, which has been retold in theatre, and has become one of the more well-known tales of unrest and disunity among the "daimyō" of the Edo period.