The correct answer to this open question is the following.
Although there are no options included, we can say the following.
The first tribe Hiawatha established was the Onondaga that later became part of the so-called Iroquois Confederacy.
Chief Hiawatha was a true leader and Native Indians followed him. He could gather together different tribes into the Iroquois Confederacy such as the Oneida, Mohawk, Seneca, Onondaga, and Cayuga. Many stories were told about Chief Hiawatha, but the most interesting are the ones that refer to the union of Indian tribes and how he dealt with the White English colonists and other European settlers.