Jumping Badger was the original name of which Native American Indian leader?

Sitting Bull was a Hunkpapa Lakota leader who led his people during years of resistance to United States government policies. He was killed by Indian agency police on the Standing Rock Indian Reservation during an attempt to arrest him, at a time when authorities feared that he would join the Ghost Dance movement (a new religious movement).

Sitting Bull was born on land later included in the Dakota Territory. In 2007, Sitting Bull's great-grandson asserted from family oral tradition that Sitting Bull was born along the Yellowstone River, south of present-day Miles City, Montana. He was named Jumping Badger at birth, and nicknamed Hunkesi, or "Slow," said to describe his careful and unhurried nature.

When the boy was fourteen years old he accompanied a group of Lakota warriors (which included his father and his uncle Four Horns) in a raiding party to take horses from a camp of Crow warriors. Jumping Badger displayed bravery by riding forward and counting coup (act of bravery) on one of the surprised Crow, which was witnessed by the other mounted Lakota. Upon returning to camp his father gave a celebratory feast at which he conferred his own name upon his son. The name, "Tȟatȟáŋka Íyotake", which in the Lakota language means "Buffalo Bull Who Sits Down", would later be abbreviated to "Sitting Bull".