Why Atomic Age was a term first coined in the 1950s because of?

The term "Atomic Age" was first coined in the 1950s due to the significant advancements and fears surrounding nuclear technology and warfare during that time. This period marked a shift in global consciousness towards the potential devastation and power of atomic energy, particularly after the bombings of Hiroshima and Nagasaki at the end of World War II. The term highlighted the beginning of a new era defined by nuclear weapons, energy, and the Cold War arms race.