US Atomic bombing in Japan in 1945

I think I would rank The discovery of antibiotic, penicillin to be #1 news story because it is a breakthrough in Science, specifically in the field of medicine. It would leave a lasting effect on people especially this medicine would be the best cure for infection or related illnesses.Prior to this discovery people died of infection but this discovery saved thousands of lives.

I would rank the discovery of DNA structure #2 because it is a very important unit of life. A modification of DNA would bring either destruction to life or modern genetic engineering so as to improve life, like cloning of crops or animals.This method would result higher and better quality yield in a shorter time. This discovery would also enlighten society why, how cancer takes place and its early detection would be able to combat this deadly disease.

I may rank Hiroshima atomic bombing as #3 because it highlighted the end of World War II. The war may have an effect for 2 or 3 generations, but it won't last forever, because its effect may die after generations when people's memory fails or fade.It may have an impact in ones immediate life.