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Created byHudson Marlow
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Les événements
Dmitri Mendeleev introduced the periodic system.December 1895 Wilhelm Roentgen DiscoveredHenri Becquerel announced the discovery of the radioactivityMarie Curie reported their discovery and coined the term radioactivity in 1898.Early 1900's the study of radiotion was widely accepted in scientific endeavorWorld War IRadium girlsThe British Roentgen Society had adopted a resolution to protect people from the over exposure.American organizations had adopted the British protection rules by 1922Throughout the 1920's-1930's more guidelines were developed.By 1930's physicists wee beginning to understand fission and radioactive decay.In 1959 the federal Radiation council was established to advise the President of the United states.In 1970's Congress created the U.S Enviomental Protection Agency (EPA) to serve as the primary federal agency to protect agency to protect people.
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