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Mar 1, 1527
Georg Bauer
He was a major help in discovering advances in safety factors. -
Mar 1, 1541
Mountain Sickness
Miners were getting "Mountain Sickness" from radioactive substances in the earth -
Cancer Deaths in miners
In 1869-1877 75% of miners died from lung cancer -
"Mountain Sickness" was discovered
Mountain Sickness was founded to be a cancerous tumor -
Discovery of X-Rays
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Ernest Rutherford
Discovered the element Radon -
Friedrich Ernst Dorn
Orgionally named Radon "radium emanation" -
Cancer frequency
There was an increase in cancer frequency due to "Mountain sickness" in miners -
Cause of Cancer
Radioactivity was the believed cause of cancer in miners -
Radon
The element name was offically changed to Radon -
Published in the American Journal
Miners lung cancer tumors were found to be caused by Radon. -
William Bale
Miners that got lung cancer were exposed to much larger doses of Radon then the avrage person -
Dr. John Harley
discovered radon in the products they were using was harming the miners more than the radon gases they were exposed to. -
Public health service warning
published a pamphlet on hazards of radon exposure and how to prevent it to the general public. -
Radon level's in mines
In the 1920-30's Radon was discovered in mines, and this was later linked to the cause of cancer in miners.