Less Solar Radiation was associated with more Cancer - 1941
The 1941 paper on Solar Radiation and Cancer references a 1912 paper on the same subject
The Relation of Solar Radiation to Cancer Mortality in North America
Frank L. Apperly, M.D.
(From the Department of Pathology, Medical College o [ Virginia, Richmond, Virginia)
(Received for publication December 20, 1940 )
📄 Download the PDF from VitaminDWiki
Lots of people were on the farm
There was no air conditioning, TV, video games, internet to keep you indoors. even if you lived in cities
Here are a few of the images
Cancer vs percent of agriculture in the state
lots of the population was on the farm back then

Cancer and latitude
Note: the data is not sorted by latitude

However, Skin Cancer increased with solar radiation

See also VitaminDWiki
Interview with transcript concerning UVA, UVB, and health – Grant Dec 2012
2200X more problems from no UVB than too much UVB - WHO 2006
Hypothesis of cause and effect of vitamin D deficiency which has the following chart

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Note how MS has increased in the South as there were fewer farmers and everyone could avoid the sun

VitaminDWiki Mortality pages with CANCER in title (34 as of Aug 2022)
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