From Four Bulbs to a Brighter Future: Celebrating 75 Years of Nuclear Power at EBR-1

December 20th, 1951, was a big day for the United States and southeast Idaho. On that day 75 years ago, EBR-1, the experimental breeder reactor at the Idaho National Laboratory, became the world's first nuclear reactor to generate usable electricity from atomic energy, initially powering four light bulbs, then an entire building, and eventually the town of Arco.