Original sentence: The Delaware Tribe, who became part of the Cherokee Nation in 1867, was previously part of the Cherokee Nation but achieved independence and federal recognition on 28 July 2009.following in the footsteps of the Shawnee Tribe, who were historically part of the Cherokee Nation in the last century but are now once again an independent tribe
Edited sentence: The Delaware Tribe, who became part of the Cherokee Nation in 1867, was previously part of the Cherokee Nation but achieved independence and federal recognition on 28 July 2009, following in the footsteps of the Shawnee Tribe, who were historically part of the Cherokee Nation in the last century but are now once again an independent tribe