Historically significant nuclear explosions

The "Atomic Age" of nuclear weaponry has been a defining feature of global politics since the mid-1940s. Over this time, the USA, USSR, & France have conducted nearly 2,000 nuclear explosion tests between them. These include atmospheric, underwater, and underground detonations in some of the most remote areas of the world known to man. At the peak of the nuclear arms race, the two superpowers of the USA & the USSR had around 60,000 warheads combined between them, enough to destroy modern civilization as we know it. Now as time goes on, gradually more countries join the list of those with nuclear capabilities, the most recent of which was North Korea in 2006. Out of this long history of detonations, I have outlined the historically most significant events below...