The United States government said that it would repatriate 361 Chinese artifacts at a ceremony held Thursday at an Indiana museum. The artifacts were among thousands of items seized in 2014 when the FBI raided the home of the late antiquities collector Don Miller.

The 361 pieces include armor, bronze weapons, and pottery, according to the FBI’s bureau in Indianapolis. The case will mark the largest-ever repatriation of cultural relics from the U.S. to China since the two countries signed a memorandum on restricting the trade of Chinese artifacts in 2009.

In recent years, Chinese collectors have gone to great lengths to obtain lost national treasures, and the country’s State Administration of Cultural Heritage has made the recovery of historically significant items looted from China and smuggled overseas one of its top priorities. (Image: @HeritageAtState on Twitter)