SPOKANE, Wash. (AP) — Hundreds of people gathered inside the historic B Reactor on the Hanford Nuclear Reservation to mark the creation of the Manhattan Project National Historic Park.

Thursday's ceremony paid tribute to Hanford's role in making the plutonium for the atomic bomb dropped on Nagasaki, Japan, bringing an end to World War II.

The nation's newest national park was created earlier this week in Washington, D.C., and includes locations at Hanford; Oak Ridge, Tennessee; and Los Alamos, New Mexico.

The public attractions at Hanford will include the B Reactor, which was the world's first full-sized nuclear reactor, plus four sites related to the old town of Hanford. They are a fruit warehouse, an irrigation pump house, the White Bluffs Bank and the old Hanford High School.

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