Video: 'Bikini Atoll Nuclear Testing 1956 - the "H-Bomb" Test'
(Monday, May 21, 1956, 5:50:38.7 a.m. MHT/Sunday, May 20, 1956, 1:50:38.7 p.m. EDT; during the Cold War) — The United States today exploded the first airborne hydrogen bomb over Bikini Atoll in the Pacific.