Seven Native American tribes are asking the University of Alabama to return nearly 6,000 human remains and artifacts from the school's archaeological park and museum. The Muscogee (Creek) Nation, Choctaw Nation of Oklahoma and five other tribes have filed a petition for the return under the Native American Graves Protection and Repatriation Act that requires the return of cultural objects, remains and artifacts. Tribal officials are asking the Native American Graves Protection and Repatriation Review Committee to declare the site culturally affiliated with the tribes and pave the way for return under the federal law.