SIOUX FALLS, S.D. — About 150 sacred artifacts were returned to representatives of the Oglala Sioux and Cheyenne River Sioux Tribes on Saturday after being stored at a small Massachusetts museum for more than a century.

The remains and artifacts were stolen in the early 19th century by a traveling shoe salesman from a gravesite at Wounded Knee, a site where an estimated 300 Native Americans were killed in 1890. The artifacts included moccasins, weapons, arrows and clothing, among other items.

Those stolen artifacts ended up at the Founders Museum in Barre, Massachusetts, about 74 miles west of Boston.

More than 100 people from the Oglala Sioux Tribe, Cheyenne River Sioux Tribe, Mashpee Wampanoag Tribe and more were in attendance at the ceremony on Saturday to commemorate the return of remains and artifacts.

The ceremony marked the culmination of repatriation efforts that had been decades in the making. The artifacts will be officially handed over during a private ceremony. 

“Ever since that Wounded Knee massacre happened, genocides have been instilled in our blood,” said Surrounded Bear, 20, who traveled to Barre from the Pine Ridge Indian Reservation, according to The Boston Globe. “And for us to bring back these artifacts, that’s a step towards healing. That’s a step in the right direction.”

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The return of these artifacts are only a small fraction of an estimated 870,000 Native American artifacts — including nearly 110,000 human remains — in the possession of colleges, museums and the federal government. 

These artifacts and remains, under the 1990 Native American Graves Protection and Repatriation Act, or NAGPRA, are supposed to be returned to tribes.