Hiroshima and Nagasaki were but two cataclysms among many: in the literal sense, they were unremarkable.
Japan has never apologised for many of the things it did during World War II – and nor does it tell its schoolchildren about them.
Any nuclear weapon exchange or major nuclear plant meltdown will immediately lead to a global public health emergency. What can we learn from past events to help prepare?
The average age of survivors is now 80. In five years, very few of these first-hand witnesses will be around to remember the event. Many of their stories are in danger of being lost forever.
In the wake of the atomic bombs, a number of Japanese animators would question mankind's relationship with technology.
News of the Hiroshima bombing spread quickly to the US public but, thanks to science fiction writers, atomic bombs were discussed more before the war began than during it.
John Hersey's article Hiroshima (1946) is seminal in historical and literary terms: the shocking realities of the atomic bomb demanded a new way of writing.
Today's nuclear arsenals are so powerful that dropping a Hiroshima-size bomb every two hours for 70 years would not exhaust their destructive capacity. The global disarmament regime is broken.
The first atom bomb test seventy years ago today marks the start of a change in Americans' thinking about radiation. On balance, our nuclear anxieties endure today.