The Oak Ridge Chamber of Commerce will host “Natural Synergy,” a photography exhibition focusing on some of the Manhattan Project’s most prominent scientists who left their homeland to be become naturalized U.S. citizens. The month-long exhibit will open on Thursday, June 15, with a reception starting at 4:30 p.m. The photo exhibit is sponsored by the National Park Service, U.S. Department of Energy, Oak Ridge Chamber of Commerce, and Explore Oak Ridge.

Beginning in the 1930s, there was active persecution of religious minorities and political opponents, a press release said. As a result, many leading scientists, philosophers, and academics fled to the West, the press release said. A number of the refugees later joined the Manhattan Project, and the large number of refugees and immigrants working on the Manhattan Project gave the American nuclear program an international character unusual in such a top-secret program.

The “Natural Synergy” photography exhibit opens the day before a naturalization ceremony for new United States citizens on Friday, June 16, that is hosted by the National Park Service and United States Citizenship and Immigration Service. That ceremony is open to the public and starts at 10:30 a.m. Friday at the American Museum of Science and Energy in Oak Ridge.

The Oak Ridge Chamber of Commerce is located at 1400 Oak Ridge Turnpike. For more information please call Manhattan Project National Historical Park at (865) 567-6767.