Britain First Threw H-Bomb

On May 15, 1957, Great Britain tested the first hydrogen bomb as part of a series of nuclear tests in the Pacific.

The details about the bomb were described only as a “nuclear device”. It was a part of a thermo-nuclear programme of building weapons that began at the end of 1954 with the aim of constructing of a mega-hydrogen bomb that would contain millions of tonnes of TNT explosive.

The testing spurred many discussions about the dangers of nuclear weapons. The arms race between the two blocs during the cold war reached its peak in the 1960s.