The Black Body Radiation Paradox

In the late 19th century physicists could not really explain why more radiation would be emitted as you increase temperature but what they couldn't explain was why the frequency of radiation increased as the temperature increased. This black body paradox was a huge problem in physics until along came Max Planck who solved it by assuming that matter and energy were quantized into tiny chunks rather than being continuous like previously thought. The discovery of atoms showed that matter was quantized rather than continuous there was a limit to how far you could go in breaking it down until you reached a basic core entity which couldn't be broken down any further.