The idea of the Big Bang Theory being the creation of the universe was supported by scientists.
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The first successful administration of insulin to treat diabetes was given to 14-year-old Leonard Thompson.
Twelve doctors at Massachusetts General Hospital in Boston performed the first successful reattachment of a human limb – it was the severed arm of a boy.
Identical twins were no longer identical after one returned from a mission to space.
Two scientists from the University of California Radiation Laboratory discovered carbon-14, a new isotope of carbon.
Kangaroo fossil research showed that they may have learned to hop over 20 million years ago.